Most Damaging Tsunamis

Lisbon Earthquake (Portugal)

Nov 1, 1755

M 8.5-9.0
Death Toll- 30,000-50,000 deaths
- Epicenter was in the Atlantic Ocean about 200 km west-southwest of Cape St. Vincent

Krakatoa Eruption (Java/Sumatra)

Aug 26, 1883

VEI 6
-at least 36,417 deaths
-70% of the island and its surrounding archipelago were destroyed

Aleutian Earthquake

Apr 1, 1946

M 8.6
165-173 deaths
Maximum Mercalli intensity of VI

Great Chilean Earthquake (Chile)

May 23, 1960

M 9.4-9.6
5,700 deaths
Most powerful earthquake recorded and lasted 10 minutes

Good Friday Earthquake (Alaska)

Mar 27, 1964

M 9.2
131 deaths
total damage costed about $311 million

Hokkaido Earthquake (Japan)

Jul 12, 1993

M 7.7
230 deaths
Tsunami damaged Hokkaido and Southeastern Russia

Papa New Guinea Quake (Papa New Guinea)

Jul 17, 1998

M 7.0
2,183-2,700 deaths
Recorded depth of 30 km and Max Mercalli intensity of VIII

Sumatra Earthquake (Indonesia)

Dec 26, 2004

M 9.1-9.3
227,898
Total damage was $15 billion

Samoa Earthquake (Samoan Islands)

Sep 29, 2009

M 4.6
at least 189 deaths
Tsunami reached 14 meters high

Chile Earthquake (Chile)

Mar 11, 2011

M 8.8
525 deaths
Quake was felt strongly in 6 different Chilean regions

Sulawesi Earthquake (Indonesia)

Sep 27, 2018

M 7.5
4340 deaths
Max Mercalli intensity of IX