Notable events List of earthquakes in 1968

1 notable events

1.1 january
1.2 february
1.3 march
1.4 april
1.5 may
1.6 june
1.7 july
1.8 august
1.9 september
1.10 october
1.11 november
1.12 december

notable events
january


magnitude 4.6 earthquake struck southern outskirts of managua, nicaragua on january 4 @ depth of 5.0 km. although modest magnitude, there property damage in region of $2 million (1968 rate) reported.
magnitude 6.4 earthquake struck atacama region, chile on january 6 @ depth of 30.0 km.
magnitude 6.1 earthquake struck off east coast of taiwan on january 13 @ depth of 35.0 km.
magnitude 6.4 earthquake struck sicily, italy on january 15 @ depth of 10.0 km. 216 people killed , 563 injured. extensive destruction reported. property damage costs $320 million (1968 rate).
magnitude 6.7 earthquake struck solomon islands on january 19 @ depth of 27.5 km.
magnitude 5.1 aftershock struck sicily, italy on january 25 @ depth of 33.0 km. 8 people killed , further 55 injured. damage reported.
magnitude 6.8 earthquake struck flores, indonesia on january 26 @ depth of 30.6 km. shock had maximum intensity of v (moderate).
magnitude 7.4 earthquake struck kuril islands, russia on january 29 @ depth of 36.9 km. shock had maximum intensity of vii (very strong).
magnitude 6.1 aftershock struck kuril islands, russia on january 29 @ depth of 33.0 km.

february


magnitude 6.6 aftershock struck kuril islands, russia on february 4 @ depth of 23.5 km.
magnitude 7.3 earthquake struck southeast of new ireland (island), papua new guinea on february 12 @ depth of 30.0 km. shock had maximum intensity of vi (strong). damage reported.
magnitude 7.2 earthquake struck aegean sea, greece on february 19 @ depth of 15.0 km. shock had maximum intensity of vii (very strong). 20 people killed , 18 injured. 500 homes collapsed , 1,951 damaged. property damage costs $600,000 (1968 rate).
magnitude 6.2 earthquake struck miyazaki prefecture, kyushu, japan on february 21 @ depth of 10.0 km. 3 people killed , damage reported.
magnitude 4.9 earthquake struck bordj bou arreridj province, algeria on february 25 @ unknown depth. 1 person killed , 100 homes collapsed.
magnitude 7.1 earthquake struck off east coast of taiwan on february 26 @ depth of 25.0 km. shock had maximum intensity of vii (very strong).

march


magnitude 6.3 earthquake struck off east coast of mindanao, philippines on march 5 @ depth of 35.0 km.
magnitude 6.1 aftershock struck off east coast of mindanao, philippines on march 5 @ depth of 35.0 km.
magnitude 6.3 earthquake struck east new britain province, papua new guinea on march 7 @ depth of 45.0 km.
magnitude 6.4 earthquake struck tonga on march 11 @ depth of 109.1 km.
magnitude 4.6 earthquake struck homa bay county, kenya on march 20 @ depth of 33.0 km.. 1 person killed , injured. damage reported.

april


magnitude 7.5 earthquake struck off east coast of kyushu, japan on april 1 @ depth of 34.2 km. shock had maximum intensity of viii (severe). 1 person died , 22 injured. homes destroyed.
magnitude 6.8 aftershock struck off east coast of kyushu, japan on april 1 @ depth of 30.0 km. shock had maximum intensity of v (moderate).
magnitude 6.6 earthquake struck southern california on april 9 @ depth of 10.0 km. shock had maximum intensity of ix (violent). damage reported across area.
magnitude 6.2 earthquake struck samoa on april 26 @ depth of 30.0 km.
magnitude 6.1 earthquake struck michoacan, mexico on april 26 @ depth of 30.0 km.
magnitude 5.3 earthquake west azerbaijan province, iran on april 29 @ depth of 34.0 km. shock had maximum intensity of viii (severe). 38 people died , 100 injured. 1,000 homes destroyed. property damage costs $1 million (1968 rate).

may


magnitude 6.7 earthquake struck ryukyu islands, japan on may 14 @ depth of 160.1 km.
magnitude 8.2 earthquake struck off east coast of honshu, japan on may 16 @ depth of 29.9 km. shock had maximum intensity of viii (severe). 52 people killed , 330 injured. tsunami washed ashore , combined shaking 1,218 homes destroyed. total property damage $131 million (1968 rate).
many aftershocks followed event. list limited measuring above 6.5 in magnitude.
magnitude 7.9 aftershock struck off northeast coast of honshu, japan on may 16 @ depth of 25.0 km. shock had maximum intensity of vii (very strong).
magnitude 6.5 aftershock struck off east coast of honshu, japan on may 16 @ depth of 25.0 km.
magnitude 6.5 aftershock struck off east coast of honshu, japan on may 16 @ depth of 43.0 km.
magnitude 6.3 earthquake struck off east coast of honshu, japan on may 19 @ depth of 20.0 km. south of aftershock sequence may 16th event.
magnitude 7.0 earthquake struck kermadec islands, new zealand on may 20 @ depth of 55.0 km.
magnitude 6.9 earthquake struck kermadec islands, new zealand on may 20 @ depth of 50.0 km. , previous event can considered doublet earthquake.
magnitude 7.0 earthquake struck kuril islands, russia on may 20 @ depth of 28.3 km.
magnitude 7.2 earthquake struck south island, new zealand on may 23 @ depth of 20.0 km. shock had maximum intensity of ix (violent). 3 people killed , property damage reported @ costs of $3 million (1968 rate).
magnitude 6.6 aftershock struck off east coast of honshu, japan on may 24 @ depth of 27.6 km.
magnitude 7.5 earthquake struck papua (province), indonesia on may 28 @ depth of 45.0 km. shock had maximum intensity of viii (severe).

june


magnitude 6.7 earthquake struck central sulawesi, indonesia on june 7 @ depth of 35.0 km. shock had maximum intensity of vii (very strong).
magnitude 6.2 aftershock struck south sulawesi, indonesia on june 7 @ depth of 38.0 km. shock had maximum intensity of vi (strong).
magnitude 7.0 aftershock struck off east coast of honshu, japan on june 12 @ depth of 32.1 km. shock had maximum intensity of vi (strong).
magnitude 6.8 earthquake struck loreto region, peru on june 19 @ depth of 15.0 km. shock had maximum intensity of vii (very strong). 15 people died , property damage $100,000 (1968 rate).

july


magnitude 6.1 earthquake struck saitama prefecture, honshu, japan on july 1 @ depth of 60.6 km. shock had maximum intensity of v (moderate).
magnitude 6.4 earthquake struck guerrero, mexico on july 2 @ depth of 57.9 km.
magnitude 6.0 earthquake struck papua (province), indonesia on july 2 @ depth of 45.0 km.
magnitude 6.3 earthquake struck off east coast of honshu, japan on july 5 @ depth of 47.0 km.
magnitude 7.3 earthquake struck kermadec islands, new zealand on july 25 @ depth of 45.0 km. damage reported.
magnitude 6.2 earthquake struck off north coast of west papua (province), indonesia on july 29 @ depth of 20.0 km.
magnitude 6.5 earthquake struck off north coast of peru on july 30 @ depth of 31.8 km. shock had maximum intensity of vi (strong).

august


magnitude 7.6 earthquake struck luzon, philippines on august 1 @ depth of 25.0 km. shock had maximum intensity of ix (violent). 270 people killed , 261 injured. homes collapsed , many damaged. costs around $8 million (1968 rate).
magnitude 7.3 earthquake struck oaxaca, mexico on august 2 @ depth of 25.0 km. shock had maximum intensity of viii (severe). 18 people killed. damage costs around $2.4 million (1968 rate).
magnitude 6.7 earthquake struck ryukyu islands, japan on august 3 @ depth of 15.0 km. shock had maximum intensity of vi (strong).
magnitude 6.4 aftershock struck luzon, philippines on august 3 @ depth of 25.0 km. shock had maximum intensity of v (moderate).
magnitude 6.1 earthquake struck off east coast of mindanao, philippines on august 4 @ depth of 100.0 km.
magnitude 6.8 earthquake struck off west coast of shikoku, japan on august 5 @ depth of 45.7 km. shock had maximum intensity of vi (strong).
magnitude 7.6 earthquake struck molucca sea, indonesia on august 10 @ depth of 23.0 km. shock had maximum intensity of ix (violent). damage reported.
magnitude 6.5 aftershock struck molucca sea, indonesia on august 10 @ depth of 25.0 km.
magnitude 6.0 earthquake struck offshore michoacan, mexico on august 14 @ depth of 20.0 km.
magnitude 7.2 earthquake struck minahassa peninsula, indonesia on august 14 @ depth of 20.0 km. shock had maximum intensity of ix (violent). tsunami triggered. 200 people killed , 58 injured. 800 homes destroyed.
magnitude 7.3 earthquake struck solomon islands on august 18 @ depth of 543.1 km.
magnitude 6.5 earthquake struck kermadec islands on august 21 @ depth of 15.0 km.
magnitude 6.3 earthquake struck tarija department, bolivia on august 23 @ depth of 533.6 km.
magnitude 6.4 earthquake struck off east coast of luzon, philippines on august 28 @ depth of 20.0 km. shock had maximum intensity of v (moderate).
magnitude 7.1 earthquake struck south khorasan province, iran on august 31 @ depth of 10.0 km. shock had maximum intensity of ix (violent). catastrophic destruction caused. death toll 10,488 , on 17,000 injured. 12,000 homes destroyed , property damage costs $35 million (1968 rate).

september


magnitude 6.2 aftershock struck razavi khorasan province, iran on september 1 @ depth of 15.0 km. shock had maximum intensity of viii (severe). 700 people lost lives , 1,500 homes destroyed.
magnitude 6.3 earthquake struck offshore bartin province, turkey on september 3 @ depth of 20.0 km. shock had maximum intensity of vii (very strong). 24 people killed , 200 injured. 2,000 homes damaged or destroyed.
magnitude 6.3 earthquake struck east sepik province, papua new guinea on september 8 @ depth of 30.0 km. shock had maximum intensity of vi (strong).
magnitude 6.1 earthquake struck ucayali region, peru on september 9 @ depth of 142.3 km.
magnitude 6.2 earthquake struck fars province, iran on september 14 @ depth of 25.0 km. shock had maximum intensity of vii (very strong).
magnitude 6.8 earthquake struck off south coast of new britain, papua new guinea on september 16 @ depth of 35.0 km. shock had maximum intensity of vii (very strong).
magnitude 6.1 aftershock struck off south coast of new britain, papua new guinea on september 16 @ depth of 65.0 km.
magnitude 6.5 earthquake struck sucre, venezuela on september 20 @ depth of 103.4 km. shock had maximum intensity of v (moderate). 3 people killed , damage caused.
magnitude 6.7 earthquake struck off south coast of hokkaido, japan on september 21 @ depth of 58.3 km. shock had maximum intensity of v (moderate).
magnitude 6.2 earthquake struck off south coast of south island, new zealand on september 25 @ depth of 15.0 km.
magnitude 6.0 earthquake struck chiapas, mexico on september 25 @ depth of 124.8 km. shock had maximum intensity of iv (light). 20 people killed , damage caused.
magnitude 7.1 earthquake struck kermadec islands, new zealand on september 26 @ depth of 50.0 km.
magnitude 6.4 earthquake struck east sepik province, papua new guinea on september 27 @ depth of 15.0 km. shock had maximum intensity of viii (severe).
magnitude 6.1 earthquake struck lima region, peru on september 28 @ depth of 65.0 km.

october


magnitude 7.3 earthquake struck bonin islands, japan on october 7 @ depth of 500.0 km.
magnitude 6.5 earthquake struck off south coast of hokkaido, japan on october 7 @ depth of 35.0 km.
magnitude 6.1 earthquake struck off south coast of new britain, papua new guinea on october 10 @ depth of 48.9 km.
magnitude 6.5 earthquake struck western australia on october 14 @ depth of 15.0 km. shock had maximum intensity of ix (violent). property damage (costs of $2.2 million) reported.
magnitude 6.2 earthquake struck off east coast of taiwan on october 20 @ depth of 22.5 km.
magnitude 7.0 earthquake struck off north coast of mainland papua new guinea on october 23 @ depth of 15.0 km. shock had maximum intensity of viii (severe). damage reported.
magnitude 6.3 earthquake struck southeast of mindanao, philippines on october 24 @ depth of 45.0 km.
magnitude 6.7 earthquake struck northern alaska on october 29 @ depth of 10.0 km.

november


magnitude 6.5 earthquake struck vanuatu on november 4 @ depth of 597.0 km.
magnitude 6.1 earthquake struck zulia, venezuela on november 17 @ depth of 175.7 km.
magnitude 6.1 earthquake struck luzon, philippines on november 22 @ depth of 35.0 km. shock had maximum intensity of v (moderate).

december


magnitude 6.1 earthquake struck dodecanese islands, greece on december 5 @ depth of 20.0 km.
magnitude 6.0 earthquake struck southern peninsula (iceland) on december 5 @ depth of 10.0 km. shock had maximum intensity of vii (very strong).
magnitude 6.6 earthquake struck bismarck sea, papua new guinea on december 7 @ depth of 15.0 km.
magnitude 6.3 earthquake struck southern alaska on december 17 @ depth of 109.6 km.
magnitude 6.0 earthquake struck eastern kamchatka, russia on december 19 @ depth of 44.1 km.




^ significant earthquake: nicaragua: managua . national geophysical data center. january 4, 1968. retrieved may 12, 2017. 
^ m 6.4 - atacama, chile . united states geological survey. january 6, 1968. retrieved may 12, 2017. 
^ m 6.1 - taiwan region . united states geological survey. january 13, 1968. retrieved may 12, 2017. 
^ m 6.4 - sicily, italy . united states geological survey. january 15, 1968. retrieved may 12, 2017. 
^ significant earthquake: italy: sicily . national geophysical data center. january 15, 1968. retrieved may 12, 2017. 
^ m 6.7 - solomon islands . united states geological survey. january 19, 1968. retrieved may 12, 2017. 
^ significant earthquake: italy: sicily . national geophysical data center. january 25, 1968. retrieved may 12, 2017. 
^ m 6.8 - flores region, indonesia . united states geological survey. january 26, 1968. retrieved may 12, 2017. 
^ m 7.4 - kuril islands . united states geological survey. january 29, 1968. retrieved may 13, 2017. 
^ m 6.1 - kuril islands . united states geological survey. january 29, 1968. retrieved may 13, 2017. 
^ m 6.6 - kuril islands . united states geological survey. february 4, 1968. retrieved may 13, 2017. 
^ m 7.3 - new ireland region, papua new guinea . united states geological survey. february 12, 1968. retrieved may 13, 2017. 
^ significant earthquake: papua new guinea: new ireland . national geophysical data center. february 12, 1968. retrieved may 17, 2017. 
^ m 7.2 - aegean sea . united states geological survey. february 19, 1968. retrieved may 13, 2017. 
^ significant earthquake: greece: aegean sea: st eustratios . national geophysical data center. february 19, 1968. retrieved may 17, 2017. 
^ m 6.2 - kyushu, japan . united states geological survey. february 21, 1968. retrieved may 13, 2017. 
^ significant earthquake: japan: kyushu . national geophysical data center. february 21, 1968. retrieved may 17, 2017. 
^ significant earthquake: algeria: el alen (babord) . national geophysical data center. february 25, 1968. retrieved may 17, 2017. 
^ m 7.1 - taiwan region . united states geological survey. february 26, 1968. retrieved may 13, 2017. 
^ m 6.3 - mindanao, philippines . united states geological survey. march 5, 1968. retrieved may 13, 2017. 
^ m 6.1 - mindanao, philippines . united states geological survey. march 5, 1968. retrieved may 13, 2017. 
^ m 6.3 - new britain region, papua new guinea . united states geological survey. march 7, 1968. retrieved may 13, 2017. 
^ m 6.4 - tonga . united states geological survey. march 11, 1968. retrieved may 13, 2017. 
^ significant earthquake: kenya: homa bay, usiri, got kokech . national geophysical data center. march 20, 1968. retrieved may 17, 2017. 
^ m 7.5 - shikoku, japan . united states geological survey. april 1, 1968. retrieved may 18, 2017. 
^ significant earthquake: japan: kyushu, shikoku . national geophysical data center. april 1, 1968. retrieved may 18, 2017. 
^ m 6.8 - shikoku, japan . united states geological survey. april 1, 1968. retrieved may 18, 2017. 
^ m 6.6 - 5km nne of ocotillo wells, ca . united states geological survey. april 9, 1968. retrieved may 18, 2017. 
^ borrego mountain earthquake . caltech. april 9, 1968. retrieved may 18, 2017. 
^ m 6.2 - samoa islands region . united states geological survey. april 26, 1968. retrieved may 18, 2017. 
^ m 6.1 - michoacan, mexico . united states geological survey. april 26, 1968. retrieved may 18, 2017. 
^ significant earthquake: iran: maku,shah bandalu,qurta bolagh,qondeqli . national geophysical data center. april 29, 1968. retrieved may 18, 2017. 
^ m 6.7 - ryukyu islands, japan . united states geological survey. may 14, 1968. retrieved may 18, 2017. 
^ m 8.2 - off east coast of honshu, japan . united states geological survey. may 16, 1968. retrieved may 18, 2017. 
^ significant earthquake: japan: off east coast of honshu island . national geophysical data center. may 16, 1968. retrieved may 18, 2017. 
^ tsunami event: off east coast of honshu island . national geophysical data center. may 16, 1968. retrieved may 18, 2017. 
^ m 7.9 - hokkaido, japan region . united states geological survey. may 16, 1968. retrieved may 18, 2017. 
^ m 6.5 - off east coast of honshu, japan . united states geological survey. may 16, 1968. retrieved may 18, 2017. 
^ m 6.5 - off east coast of honshu, japan . united states geological survey. may 16, 1968. retrieved may 19, 2017. 
^ m 6.3 - near east coast of honshu, japan . united states geological survey. may 19, 1968. retrieved may 19, 2017. 
^ m 7.0 - kermadec islands, new zealand . united states geological survey. may 20, 1968. retrieved may 19, 2017. 
^ m 6.9 - kermadec islands, new zealand . united states geological survey. may 20, 1968. retrieved may 19, 2017. 
^ m 7.0 - east of kuril islands . united states geological survey. may 20, 1968. retrieved may 19, 2017. 
^ m 7.2 - south island of new zealand . united states geological survey. may 23, 1968. retrieved may 20, 2017. 
^ significant earthquake: new zealand: south island: nw coast . national geophysical data center. may 23, 1968. retrieved may 20, 2017. 
^ m 6.6 - off east coast of honshu, japan . united states geological survey. may 24, 1968. retrieved may 20, 2017. 
^ m 7.5 - near north coast of papua, indonesia . united states geological survey. may 28, 1968. retrieved may 20, 2017. 
^ m 6.7 - sulawesi, indonesia . united states geological survey. june 7, 1968. retrieved may 20, 2017. 
^ m 6.2 - sulawesi, indonesia . united states geological survey. june 7, 1968. retrieved may 20, 2017. 
^ m 7.0 - off east coast of honshu, japan . united states geological survey. june 12, 1968. retrieved may 20, 2017. 
^ m 6.8 - northern peru . united states geological survey. june 19, 1968. retrieved may 20, 2017. 
^ significant earthquake: peru: san martin,moyobamba,yantalo,rioja,lamas . national geophysical data center. june 19, 1968. retrieved may 20, 2017. 
^ m 6.1 - near south coast of honshu, japan . united states geological survey. july 1, 1968. retrieved may 20, 2017. 
^ m 6.4 - guerrero, mexico . united states geological survey. july 2, 1968. retrieved may 20, 2017. 
^ m 6.0 - papua, indonesia . united states geological survey. july 2, 1968. retrieved may 21, 2017. 
^ m 6.3 - near east coast of honshu, japan . united states geological survey. july 5, 1968. retrieved may 21, 2017. 
^ m 7.3 - kermadec islands, new zealand . united states geological survey. july 25, 1968. retrieved may 21, 2017. 
^ significant earthquake: kermadec islands: s of, raoul . national geophysical data center. july 25, 1968. retrieved may 21, 2017. 
^ m 6.2 - near north coast of papua, indonesia . united states geological survey. july 29, 1968. retrieved may 21, 2017. 
^ m 6.5 - near coast of northern peru . united states geological survey. july 30, 1968. retrieved may 21, 2017. 
^ m 7.6 - luzon, philippines . united states geological survey. august 1, 1968. retrieved may 21, 2017. 
^ significant earthquake: philippines: luzon: manila . national geophysical data center. august 1, 1968. retrieved may 21, 2017. 
^ m 7.3 - oaxaca, mexico . united states geological survey. august 2, 1968. retrieved may 21, 2017. 
^ significant earthquake: mexico: oaxaca, guerrero . national geophysical data center. august 2, 1968. retrieved may 21, 2017. 
^ m 6.7 - ryukyu islands, japan . united states geological survey. august 3, 1968. retrieved may 21, 2017. 
^ m 6.4 - luzon, philippines . united states geological survey. august 3, 1968. retrieved may 21, 2017. 
^ m 6.1 - mindanao, philippines . united states geological survey. august 4, 1968. retrieved may 21, 2017. 
^ m 6.8 - shikoku, japan . united states geological survey. august 5, 1968. retrieved may 21, 2017. 
^ m 7.6 - molucca sea . united states geological survey. august 10, 1968. retrieved may 22, 2017. 
^ significant earthquake: indonesia: molucca islands: manado, celebes . national geophysical data center. august 10, 1968. retrieved may 22, 2017. 
^ m 6.5 - molucca sea . united states geological survey. august 10, 1968. retrieved may 22, 2017. 
^ m 6.0 - offshore michoacan, mexico . united states geological survey. august 14, 1968. retrieved may 22, 2017. 
^ m 7.2 - minahasa, sulawesi, indonesia . united states geological survey. august 14, 1968. retrieved may 22, 2017. 
^ tsunami event: banda sea . national geophysical data center. august 14, 1968. retrieved may 22, 2017. 
^ m 7.3 - solomon islands . united states geological survey. august 18, 1968. retrieved may 22, 2017. 
^ m 6.5 - kermadec islands, new zealand . united states geological survey. august 21, 1968. retrieved may 27, 2017. 
^ m 6.3 - tarija, bolivia . united states geological survey. august 23, 1968. retrieved may 27, 2017. 
^ m 6.4 - philippine islands region . united states geological survey. august 28, 1968. retrieved may 27, 2017. 
^ m 6.4 - philippine islands region . united states geological survey. august 28, 1968. retrieved may 27, 2017. 
^ significant earthquake: iran: dasht-e-bayaz . national geophysical data center. august 31, 1968. retrieved may 27, 2017. 
^ m 6.2 - northeastern iran . united states geological survey. september 1, 1968. retrieved may 27, 2017. 
^ significant earthquake: iran: ferdow . national geophysical data center. september 1, 1968. retrieved may 27, 2017. 
^ m 6.3 - central turkey . united states geological survey. september 3, 1968. retrieved may 28, 2017. 
^ significant earthquake: turkey: bartin, amasra, cakraz . national geophysical data center. september 3, 1968. retrieved may 28, 2017. 
^ m 6.3 - near north coast of new guinea, papua new guinea . united states geological survey. september 8, 1968. retrieved may 28, 2017. 
^ m 6.1 - central peru . united states geological survey. september 9, 1968. retrieved may 28, 2017. 
^ m 6.2 - southern iran . united states geological survey. september 14, 1968. retrieved may 28, 2017. 
^ m 6.8 - new britain region, papua new guinea . united states geological survey. september 16, 1968. retrieved may 29, 2017. 
^ m 6.1 - new britain region, papua new guinea . united states geological survey. september 16, 1968. retrieved may 29, 2017. 
^ m 6.5 - sucre, venezuela . united states geological survey. september 20, 1968. retrieved may 29, 2017. 
^ significant earthquake: venezuela: carupano . national geophysical data center. september 20, 1968. retrieved may 29, 2017. 
^ m 6.7 - hokkaido, japan region . united states geological survey. september 21, 1968. retrieved may 29, 2017. 
^ m 6.2 - off west coast of south island of new zealand . united states geological survey. september 25, 1968. retrieved may 29, 2017. 
^ m 6.0 - chiapas, mexico . united states geological survey. september 25, 1968. retrieved may 29, 2017. 
^ significant earthquake: mexico-guatemala: s chiapas . national geophysical data center. september 25, 1968. retrieved may 29, 2017. 
^ m 7.1 - kermadec islands, new zealand . united states geological survey. september 26, 1968. retrieved may 29, 2017. 
^ m 6.4 - near north coast of new guinea, papua new guinea . united states geological survey. september 27, 1968. retrieved may 31, 2017. 
^ m 6.1 - near coast of central peru . united states geological survey. september 28, 1968. retrieved may 31, 2017. 
^ m 7.3 - bonin islands, japan region . united states geological survey. october 7, 1968. retrieved may 31, 2017. 
^ m 6.5 - hokkaido, japan region . united states geological survey. october 7, 1968. retrieved may 31, 2017. 
^ m 6.1 - new britain region, papua new guinea . united states geological survey. october 10, 1968. retrieved may 31, 2017. 
^ m 6.5 - western australia . united states geological survey. october 14, 1968. retrieved may 31, 2017. 
^ significant earthquake: australia: meckering, northam, cunderdin, york . national geophysical data center. october 10, 1968. retrieved may 31, 2017. 
^ m 6.2 - taiwan region . united states geological survey. october 20, 1968. retrieved may 31, 2017. 
^ m 7.0 - near north coast of new guinea, papua new guinea . united states geological survey. october 23, 1968. retrieved june 3, 2017. 
^ significant earthquake: papua new guinea: n coast, wewak, dagua . national geophysical data center. october 23, 1968. retrieved june 3, 2017. 
^ m 6.3 - philippine islands region . united states geological survey. october 24, 1968. retrieved june 3, 2017. 
^ m 6.7 - northern alaska . united states geological survey. october 29, 1968. retrieved june 3, 2017. 
^ m 6.5 - vanuatu region . united states geological survey. november 4, 1968. retrieved june 3, 2017. 
^ m 6.1 - zulia, venezuela . united states geological survey. november 17, 1968. retrieved june 3, 2017. 
^ m 6.1 - luzon, philippines . united states geological survey. november 22, 1968. retrieved june 3, 2017. 
^ m 6.1 - dodecanese islands, greece . united states geological survey. december 5, 1968. retrieved june 3, 2017. 
^ m 6.0 - iceland region . united states geological survey. december 5, 1968. retrieved june 3, 2017. 
^ m 6.6 - bismarck sea . united states geological survey. december 7, 1968. retrieved june 3, 2017. 
^ m 6.3 - southern alaska . united states geological survey. december 17, 1968. retrieved june 3, 2017. 
^ m 6.0 - near east coast of kamchatka peninsula, russia . united states geological survey. december 19, 1968. retrieved june 3, 2017.