List of earthquakes in 1990

Earthquakes in 1990 details the major earthquakes that occurred around the world in the year 1990.

Bishop's Castle earthquake

On April 2, 1990, a 5.1 ML earthquake was felt across much of England and Wales at 13:46 34.2s UTC. Early news reports in the immediate aftermath speculatively attributed the epicentre to places as far apart as Nottingham and a valley in the east of Wales and then settled on Wrexham,[1] before geologists finally concluded that it had in fact been in the vicinity of the small town of Clun near the town of Bishop's Castle, Shropshire.[2]

April 18, 1990 - Watsonville, California

Magnitude-5.4 earthquake frightened younger celebrants at Lotta's Fountain as they commemorated the 1906 disaster. It was just one about 100 quake shocks felt throughout the day. One house collapsed in Watsonville, California from the shock, and minor power failures and rockslides were reported.[3]

All 44 BART trains were halted for track inspection after today's earthquake. Service resumed after 15 minutes.

Manjil–Rudbar earthquake

The Manjil–Rudbar earthquake occurred at 00:30:09 on June 21, 1990 (21:00:9 June 20, 1990 UTC). It caused major damage in areas within a one hundred kilometer radius of the epicenter near the city of Rasht and about two hundred kilometers northwest of Tehran. The cities of Rudbar, Manjil, and Lushan and 700 villages were destroyed, and over three hundred villages were affected. There was $200,000,000 not only in damage but in health care in damage in Gilan and Zanjan provinces southwest of the Caspian Sea. 100,000 adobe houses sustained major damage or collapsed resulting in 40,000 dead, and 60,000 injured. 500,000 people were left homeless.[4]

Luzon earthquake

The Luzon earthquake occurred on Monday, July 16, 1990, at 4:26 PM local time in the Philippines. The densely populated island of Luzon was struck by an earthquake with a 7.8 Ms (surface-wave magnitude). The earthquake produced a 125 km-long ground rupture that stretched from Dingalan, Aurora to Cuyapo, Nueva Ecija as a result of strike-slip movements along the Philippine Fault and the Digdig Fault within the Philippine Fault System. The earthquake epicenter was placed at 15° 42' N and 121° 7' E near the town of Rizal, Nueva Ecija, northeast of Cabanatuan City.[5]

An estimated 1,621 people were killed in the earthquake,[6][7] most of the fatalities located in Central Luzon and the Cordillera region.

References
  1. "New Scientist". Contemporary account of limitations to the original seismological reporting, which rates the earthquake at 5.4 on the Richter scale. Retrieved 2008-02-02.
  2. "BGS Bishop's Castle page". British Geological Survey web-page on the Bishop's Castle earthquake. Archived from the original on 2007-06-13. Retrieved 2008-02-02.
  3. "Archived copy". Archived from the original on 2012-11-05. Retrieved 2012-10-29.CS1 maint: archived copy as title (link)
  4. Earthquake Information for 1990
  5. "The July 16 Luzon Earthquake: A Technical Monograph". Inter-Agency Committee for Documenting and Establishing Database on the July 1990 Earthquake. Philippine Institute of Volcanology and Seismology. 2001. Archived from the original on 2008-09-07. Retrieved 2009-01-07.
  6. The World Almanac and Book of Facts 2008: 140th Anniversary Edition. United States: World Almanac Education Group Inc. 2008. p. 305. ISBN 1-60057-072-0.
  7. John W. Wright, ed. (2008). The New York Times 2008 Almanac. United States: Penguin Group. pp. 753. ISBN 978-0-14-311233-4.
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