city 1981

South Hill earthquakes in 1981

Earthquake archive for South Hill in 1981: 4 recorded events with dates, magnitudes, depths and epicenter details.

Overview

Period at a glance

4
Recorded earthquakes
5.2
Strongest magnitude
4.8
Average magnitude
4.9 km
Average depth
Strongest event
5.2
14 Feb 1981

Portland, United States

Depth
6.0 km
UTC
06:09:27
Coordinates
46.349, -122.236
Open

Analysis of the recorded activity

During 1981, 4 earthquakes were recorded near South Hill. Magnitudes ranged from 4.5 to 5.2, with an average of 4.8; depths ranged from 2.0 to 9.4 km, averaging 4.9 km. Activity extended from Saturday, February 14, 1981 to Thursday, May 28, 1981 UTC.

Only 4 earthquakes in the current catalogue match this period and location.

Event list

All earthquakes

4
5.2 6.0 km
Portland, United States
14 Feb 1981 06:09:27 UTC
5.0 2.1 km
Yakima, United States
28 May 1981 09:10:45 UTC
4.6 2.0 km
Yakima, United States
28 May 1981 08:56:02 UTC
4.5 9.4 km
Portland, United States
13 May 1981 05:00:36 UTC