Major Historical Earthquakes
A reference list of 18 significant earthquakes in recorded history, all magnitude 7.0 or greater. These events shaped our understanding of seismic risk and the importance of early warning.
- 9.5Mag#1

Great Chilean Earthquake
Valdivia, Chile • May 22, 1960 • Fatalities: ~1,000–6,000
The most powerful earthquake ever recorded. It triggered a Pacific-wide tsunami that struck Chile, Hawaii, Japan, and the Philippines.
- 9.2Mag#2

Great Alaska (Good Friday) Earthquake
Prince William Sound, Alaska • March 27, 1964 • Fatalities: ~131
The most powerful earthquake in North American history. It caused massive ground deformation and destructive tsunamis along the Pacific coast.
- 9.1Mag#3

Indian Ocean (Sumatra–Andaman) Earthquake
Off Sumatra, Indonesia • December 26, 2004 • Fatalities: ~227,900
One of the deadliest natural disasters in recorded history. The tsunami devastated coastlines across 14 countries around the Indian Ocean.
- 9.1Mag#4

Tōhoku Earthquake
Off the Pacific coast of Tōhoku, Japan • March 11, 2011 • Fatalities: ~19,750
Triggered a massive tsunami and the Fukushima Daiichi nuclear disaster. The most costly natural disaster in history.
- 9.0Mag#5

Severo-Kurilsk Earthquake
Kamchatka Peninsula, Russia • November 4, 1952 • Fatalities: ~2,300
Generated a destructive tsunami that struck the Kuril Islands and crossed the Pacific to Hawaii.
- 8.8Mag#6

Maule Earthquake
Maule, Chile • February 27, 2010 • Fatalities: ~525
One of the strongest earthquakes of the 21st century. The tsunami and shaking affected much of central Chile.
- 8.8Mag#7

Ecuador–Colombia Earthquake
Off the coast of Ecuador • January 31, 1906 • Fatalities: ~500–1,500
Produced a strong tsunami that traveled across the Pacific, reaching Hawaii and Japan.
- 8.7Mag#8

Rat Islands Earthquake
Rat Islands, Alaska • February 4, 1965 • Fatalities: 0
A great earthquake in the Aleutian arc that generated a tsunami up to 10 meters on Shemya Island.
- 8.6Mag#9

Nias–Simeulue Earthquake
Northern Sumatra, Indonesia • March 28, 2005 • Fatalities: ~1,300
Struck three months after the 2004 megaquake, devastating the islands of Nias and Simeulue.
- 8.6Mag#10

Assam–Tibet Earthquake
Assam, India / Tibet border • August 15, 1950 • Fatalities: ~4,800
The largest known continental earthquake, causing enormous landslides across the eastern Himalayas.
- 8.6Mag#11

Andreanof Islands Earthquake
Andreanof Islands, Alaska • March 9, 1957 • Fatalities: 0
Generated a Pacific-wide tsunami and destroyed two bridges on Adak Island; waves reached Hawaii.
- 8.6Mag#12

Indian Ocean Earthquake
Off Sumatra, Indonesia • April 11, 2012 • Fatalities: ~10
An unusually large strike-slip earthquake within the oceanic plate, rather than at a subduction zone.
- 7.9Mag#13

Sichuan (Wenchuan) Earthquake
Sichuan, China • May 12, 2008 • Fatalities: ~87,600
A catastrophic inland earthquake that caused widespread destruction and landslides across Sichuan province.
- 7.9Mag#14

San Francisco Earthquake
San Francisco, California • April 18, 1906 • Fatalities: ~3,000
Ruptured the San Andreas Fault and ignited fires that destroyed much of San Francisco.
- 7.8Mag#15

Gorkha (Nepal) Earthquake
Gorkha, Nepal • April 25, 2015 • Fatalities: ~8,960
Devastated the Kathmandu Valley and triggered avalanches on Mount Everest.
- 7.8Mag#16

Turkey–Syria Earthquake
Gaziantep, Turkey • February 6, 2023 • Fatalities: ~59,200
A doublet earthquake on the East Anatolian Fault that caused catastrophic damage across Turkey and Syria.
- 7.6Mag#17

Tangshan Earthquake
Tangshan, China • July 28, 1976 • Fatalities: ~242,000
One of the deadliest earthquakes in history, it nearly leveled the industrial city of Tangshan.
- 7.0Mag#18

Haiti Earthquake
Léogâne, Haiti • January 12, 2010 • Fatalities: ~100,000–316,000
Struck near the capital Port-au-Prince, causing immense loss of life and destroying much of the city's infrastructure.
