Today in Earthquake History

Today's Earthquake Fact:
The term seismic seiche was first coined by Anders Kvale in 1955, to describe oscillation of lake levels in Norway and England caused by the Assam earthquake of August, 1950.

Year at a Glance

October

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

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Year	Location	Magnitude	Comment

1918	Puerto Rico	7.5	90th Anniversary The most destructive earthquake in the history of Puerto Rico. The epicenter was located northwest of Aguadilla in the Mona Canyon (between Puerto Rico and the Dominican Republic). The earthquake was accompanied by a tsunami which got up to 6 meters (19.5 feet) high. Damage was concentrated in the western area of the Island because this was the closest zone to the earthquake. The earthquake killed about 116 people and caused more than 4 million dollars of damage. Numerous houses, factories, public buildings, chimneys, bridges and other structures suffered severe damage. From The earthquake History of Puerto Rico.

1985	Guatemala	4.5	Several people injured and about 500 houses destroyed at San Miguel Uspantan. About 80 percent of the buildings in the town sustained some damage. Felt strongly in western Guatemala. Felt also at Guatemala City. From Significant Earthquakes of the World, 1985.

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