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Earthquakes; March-April, 1979

This was a moderately active period, seismically speaking. Three major earthquakes having magnitudes (M) ranging from 7.0 to 7.9 to only one major quake during the first 2 months of the year. Major earthquakes struck in Mexico, Indonesia, and Yugoslavia. The Yugoslavian earthquake caused considerable damage and loss of life. In the United States, a number of earthquakes were experienced, the most damaging one in southern California on March 15. The aftershocks continued in southeastern Alaska but caused no additional damage.

Earthquake Information Bulletin (USGS)↗

Earthquakes; July-August, 1978

Earthquake activity during this period was about normal. Deaths from earthquakes were reported from Greece and Guatemala. Three major earthquakes (magnitude 7.0-7.9) occurred in Taiwan, Chile, and Costa Rica. In the United States, the most significant earthquake was a magnitude 5.6 on August 13 in southern California.

Earthquake Information Bulletin (USGS)↗

Earthquakes; January-February, 1979

The first major earthquake (magnitude 7.0 to 7.9) of the year struck in southeastern Alaska in a sparsely populated area on February 28. On January 16, Iran experienced the first destructive earthquake of the year causing a number of casualties and considerable damage. Peru was hit by a destructive earthquake on February 16 that left casualties and damage. A number of earthquakes were experienced in parts of the Untied States, but only minor damage was reported.

Earthquake Information Bulletin (USGS)↗

Earthquakes, November-December 1977

Two major earthquakes occurred in the last 2 months of the year. A magnitude 7.0 earthquake struck San Juan Province, Argentina, on November 23, causing fatalities and damage. The second major earthquake was a magnitude 7.0 in the Bonin Islands region, an unpopulated area. On December 19, Iran experienced a destructive earthquake, which killed over 500. In the United States, the largest earthquake during this reporting period was a magntidue 6.6 in the Andreanof Islands, which are part of the Aleutian Islands chain, on November 4 that caused some minor damage. Northern California was struck by a magnitude 4.8 earthquake on November 22 causing moderate damage in the Willits area. This was the most damaging quake in the United States during the year. Two major earthquakes of magntidues 7.0 or above to 14 for the year.

Earthquake Information Bulletin (USGS)↗

Earthquakes, March-April 1978

Earthquakes caused fatalities in Mexico and Sicily; injuries and damage were sustained in eastern Kazakh SSR and Yugoslavia. There were four major earthquakes; one south of Honshu, Japan, two in the Kuril Islands region, and one in the Soviet Union. The United States experienced a number of earthquakes, but only very minor damage was reported.

Earthquake Information Bulletin (USGS)↗

Earthquakes; July-August 1977

July and August were somewhat active seismically speaking, compared to previous months of this year. There were seven earthquakes having magnitudes of 6.5 or greater. The largest was a magnitudes of 6.5 or greater. The largest was a magnitude 8.0 earthquake south of Sumbawa Island on August 19 that killed at least 111. The United States experienced a number of earthquakes during this period, but only one, in California, caused some minor damage.

Earthquake Information Bulletin (USGS)↗

Earthquakes; January-February, 1978

Seismically speaking, 1978 began slowly. The first major earthquake (magnitude 7.0 and above) of the year occurred on February 9 and was centered in the Kermadec Islands region in the South Pacific Ocean. The first destructive earthquake of the year strukc southern Honshu, Japan, on January 14. The magnitude 6.5 earthquake caused considerable damage and loss of life. The United States experienced a number of earthquakes during this reporting period, but only very minor damage and no casualties were reported.

Earthquake Information Bulletin (USGS)↗

When an earthquake occurs....

When an earthquake occurs, we must be ready at the National Earthquake Information Service (NEIS) in Golden, Colo., to provide information as to its magnitude and epicenter as quickly as possible.This information is given to agencies concerned with disaster relief and to the press. A typical scenario for our operations was the recent Rumanian earthquake of March 4, 1977.

Earthquake Information Bulletin (USGS)↗

Earthquakes, October-November 1976

October brought two damaging earthquakes to Ecuador and New Guinea. The Ecuador earthquake, although only magnitude 5.5, caused casualties and damage. The new Guinea earthquake, a major quake, caused a loss of life and damage. Two major earthquakes were experienced during November, in eastern Turkey on November 24 and in northern Chile on November 30. The Turkey earthquake was devastating as usual in that area. Other areas of the world experienced strong earthquakes-Iran, China, Solomon Islands, and the Philippine Islands; some caused death and damage. The United States experienced a number of moderate earthquakes, but no signigicant damage sustained.

Earthquake Information Bulletin (USGS)↗

Earthquakes; May-June 1977

The months of May and June were somewhat quiet seismically speaking. There was only on significant earthquake, a magnitude 7.2 on June 22 in teh Tonga Islands. In teh United States, the two largest earthquakes occurred in California and on Hawaii.

Earthquake Information Bulletin (USGS)↗

Earthquakes; January-February 1977

There were no major earthquakes (7.0-7.9) during the first 2 months of the year, and no fatalities were reported. Three strong earthquakes occurred- New Guinea, Tadzhik S.S.R, and the Aleutian Islands. The Tadzhik earthquake on January 31 caused considerable damage and possible injuries. The United States experienced a number of earthquakes, but only very minor damage was reported.

Earthquake Information Bulletin (USGS)↗

Earthquakes, December 1976

The month of December was seismically quiet compared to the previous months of the year. There were no major earthquakes during the month and only one that caused fatalities. On December 8, the Republic of South Africa was struck by an earthquake that caused deaths and damage. The United States experienced number of earthquakes, but only very minor damage was reported. This year ended with 18 earthquakes of magnitudes 7.0 or greater and probably ranks as the world's worst year for earthquake fatalities since 1556 when 830,000 people were killed in China.

Earthquake Information Bulletin (USGS)↗

Earthquakes: August-September 1976

Destructive earthquakes continued to strike in many parts of the world during this period. The sparsely populated area of the New Hebrides Islands in the southwest Pacific was struck by a major earthquake (one with a magnitude between 7.0 and 7.9). A great earthquake (magnitude 8.0 or above) struck just off the west coast of Mindanao, Philippine Islands, generating a tsunami, killing thousands of people, and causing extensive damage. Three strong earthquakes rocked the Szechwan province of Chian, probably causing loss of life and damage in the epicentral area. The Untied States again did not expereince any destructive earthquakes. The strongest, one of magnitude 5.9, was located in southern Alaska.

Earthquake Information Bulletin (USGS)↗

Earthquakes, October 1975

October was an active month seismically, although there were no damaging earthquakes in the United States. Several States experienced earthquakes that were felt sharply. There were four major earthquakes in other parts of the world, including a magntidue 7.4 in the Philippine Islands that killed on person.

Earthquake Information Bulletin (USGS)↗