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Today in Earthquake History

Today in Earthquake History

Today's Earthquake Fact:
The magnitude of an earthquake is a measured value of the earthquake size. The magnitude is the same no matter where you are, or how strong or weak the shaking was in various locations.
The intensity of an earthquake is a measure of the shaking created by the earthquake, and this value does vary with location.

June   15

Note: All earthquake dates are UTC, not local time.


Year Location Magnitude Comment
1896 Sanriku, Japan

Epicenter
8.5 Damage extreme. Tsunami. Over 27,000 deaths.
From Catalog of Significant Earthquakes, 2000 B.C. - 1979, published by World Data Center A for Solid Earth Geophysics, Report SE-27, July 1981.

"Fishermen twenty miles out to sea didn't notice the wave pass under their boats because it only had a height at the time of about fifteen inches. They were totally unprepared for the devastation that awaited them when they returned to the port of Sanriku. Twenty-eight thousand people were killed and 170 miles of coastline were destroyed by the wave that had passed under them."
From "The Physics Behind the Wave."

"On June 15, 1896, nearly 22,000 Japanese lost their lives due to the most devastating tsunami in Japanese history. The tsunami, which was generated by an earthquake off the coast of Sanriku, Japan, attained a height of 25 meters (80 feet), and instantly swept away all houses and people when it reached land. The tsunami was also observed across the Pacific. In Hawaii, wharves were demolished and several houses were swept away. In California, a 9.5 feet wave was observed, according to the San Francisco Chronicle of June 16, 1896. This Sanriku tsunami served as an impetus for tsunami research in Japan. "
From Research Describes Origin of Devastating Tsunami.

1982 Sichuan Province, China

Epicenter
5.6 Ten people killed, 5 injured and damage in the Garze area.
From Significant Earthquakes of the World, 1982.
1991 Luzon, Philippine Islands

Epicenter
5.6 Felt at Manila. This is the largest of a series of earthquakes associated with the eruption of Pinatubo Volcano. At least 137 people were killed and extensive damage was caused in Zambales Province by the eruptions.
From Significant Earthquakes of the World 1991.
1995 Greece

Epicenter
6.5 Twenty-six people killed and sixty injured in the Aiyion area. Extensive damage occurred at Aiyion and Eratini. Damage also occurred at Corinth, Patras and Pirgos. Preliminary estimate of damage was placed at 660 million US dollars. Felt at Athens, Ioannina, Kalamata, Kardhitsa and Kozani. Also felt on Kefallina.
From Significant Earthquakes of the World 1995.
1999 Central Mexico

Epicenter
7.0 10th Anniversary

Fourteen people killed, about 200 injured and considerable damage (VIII) to thousands of buildings and several bridges in Puebla; one person killed by a landslide, dozens injured and damage to buildings and bridges in Veracruz; one person killed, dozens injured, many buildings and roads damaged in Oaxaca; one person killed and some buildings damaged in Morelos; one person died of a heart attack and some buildings damaged in Guerrero; two people died of heart attacks and minor damage to buildings in the Distrito Federal. Dozens injured and damage in the states of Mexico and Tlaxcala; two people injured in Hidalgo. A railroad was damaged between Calco and Mixquic. Felt in much of central and southern Mexico from Aguascalientes to Chiapas.
From Significant Earthquakes of the World 1999.

2005 Off the coast of Northern California

Epicenter
7.2 Felt (IV) at Crescent City, Ferndale, Kneeland, Loleta and Petrolia; (III) at Arcata, Bayside, Blue Lake, Carlotta, Dunsmuir, Eureka, Fortuna, Garberville, Gasquet, Hoopa, Hydesville, Klamath, McKinleyville, Mount Shasta, Orick, Orleans, Redcrest, Redway, Rio Dell, Scotia, Smith River, Trinidad, Whitethorn, Willow Creek and Yreka. Also felt (III) at Azalea, Brookings, Glendale, Grants Pass, Jacksonville, Merlin, Roseburg and Wolf Creek, Oregon. Felt from southwestern Oregon south to the San Francisco Bay area and by some people in the Portland and Los Angeles areas. A tsunami was generated with maximum recorded wave heights (peak- to-trough) of 26 cm at Crescent City, 6.5 cm at Arena Cove and 5 cm at North Spit, California; 3.5 cm at Tofino and 2 cm at Bamfield, British Columbia, Canada.
From Significant Earthquakes of the World 2005.

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