|
| Year |
Location |
Magnitude |
Comment |
|
| 1923 |
Offshore, Cape Mendocino, California
|
7.2 |
One of the Largest Earthquakes in the United States.
Houses were damaged severely at
Ferndale, Petrolia, and Upper Mattole;
many chimneys were downed; and water
lines were broken. At Pepperwood, one
house was shaken from its foundation and
split apart, and another was twisted from
its base. Chimneys also were knocked
over at Alton, Dyerville, Fortuna,
Loleta, Ocean House, and Scotia. Several
landslides occurred in the canyon. Felt
from Walker (Siskiyou County) south to
San Francisco and beyond and east to
Grass Valley (Nevada County). It also
was observed on several ships at sea.
Many aftershocks occurred in the
Petrolia-Upper Mattole region. A small
tsunami was recorded.
|
|
| 1988 |
Tennant Creek, Australia
|
6.3
6.4
6.6 |
20th Anniversary
Three earthquakes above magnitude 6 in the same day.
Damage in the Tennant Creek area. Felt over two-thirds of Australia. According to preliminary reports from the Australian
Bureau of Mineral Resources, Geology and Geophysics, two fault scarps about 8 km apart striking approximately
east-southeast were observed in the epicentral area. The southernmost scarp was about 15 km long with a maximum
throw of about one meter.
|
|
| 1989 |
Tajikistan
|
5.3 |
Two hundred seventy-four people killed, many
injured, extensive damage (VII) and mudslides in the
Gissar area. Nearly all the casualties were caused by
mudslides which buried Sharora and two nearby villages.
Felt (VI) at Gulkhani and Sarkishti; (V) at Dushanbe
and Tursunzade; (IV) at Denau and Nurek.
|
|
|
U.S. Department of the Interior | U.S. Geological Survey