Earth quakes

major tsunami occurred Pacific-wide, causing damage as far as San Diego, CA.

07
of 09
January 31, 1906 – Ecuador
A black and white image of buildings destroyed by the Ecuador earthquake
Magnitude: 8.8

This earthquake occurred off the coast of Ecuador and killed between 500-1,500 people from its ensuing tsunami. This tsunami affected the entire Pacific, reaching the shores of Japan approximately 20 hours later.

08
of 09
February 4, 1965 – Alaska
Girdwood
Smith Collection/Gado / Getty Images
Magnitude: 8.7

This earthquake ruptured a 600-km segment of the Aleutian Islands. It generated a tsunami around 35 feet high on a nearby island, but caused very little other damage to a state devastated a year earlier when the “Good Friday Earthquake” hit the region.

09
of 09
Other Historical Earthquakes
Tsunami travel time for 1755 Portugal earthquake.
Estimated tsunami travel time for 1755 Portugal earthquake. NOAA/Department of Commerce
Of course, earthquakes occurred before 1900, they were just not measured as accurately. Here are some notable pre-1900 earthquakes with estimated magnitude and, when available, intensity:

August 13, 1868 – Arica, Peru (now Chile): Estimated magnitude: 9.0; Mercalli intensity: XI.

November 1, 1755 – Lisbon, Portugal: Estimated magnitude: 8.7; Mercalli intensity: X.

January 26, 1700 – Cascadia Region (Pacific Northwest), United States and Canada: Estimated magnitude: ~9. This earthquake is known from written records of its subsequent tsunami in Japan.

CITE
Watch Now: Many Early Earthquake Records Missing

 

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