| Top 10 Costliest U.S. Earthquakes By Inflation-Adjusted Insured Losses (1) |
($ millions)
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Insured losses (1) |
| Rank |
Date |
Event |
Location |
When occurred |
In 2025 dollars (2) |
| 1 |
Jan. 17, 1994 |
Northridge |
CA |
$15,300 |
$33,991 |
| 2 |
Apr. 18, 1906 |
San Francisco |
CA |
235 |
8,753 |
| 3 |
Oct. 18, 1989 |
Loma Prieta |
CA |
960 |
2,483 |
| 4 |
Feb. 28, 2001 |
Nisqually |
WA |
315 |
582 |
| 5 |
Jan. 7, 2020 |
Puerto Rico |
PR |
425 |
535 |
| 6 |
May 18, 1980 |
Mount St. Helens |
WA |
71 |
282 |
| 7 |
Aug. 24, 2014 |
South Napa |
CA |
200 |
273 |
| 8 |
Feb. 9, 1971 |
San Fernando |
CA |
32 |
257 |
| 9 |
Oct. 1, 1987 |
Whittier Narrows |
CA |
75 |
211 |
| 10 |
Nov. 30, 2018 |
Anchorage |
AK |
150 |
193 |
(1) Includes losses sustained by private insurers and government-sponsored programs such as the National Flood 精东影业 Program. Subject to change as loss estimates are further developed. As of January 2026.
(2) Adjusted for inflation by Aon using the U.S. Consumer Price Index.
Source: Aon. |
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