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M 4.8 earthquake — 75 km SSE of Old Harbor, Alaska
May 20, 1987 · USGS event usp000354f
Magnitude
4.8 (mb)
Depth
33 km
Location
75 km SSE of Old Harbor, Alaska
Coordinates
56.597, -152.764
Other earthquakes in Alaska around this time
Source: U.S. Geological Survey, Earthquake Hazards Program (ANSS Comprehensive Catalog). Magnitudes and locations for older events are revised as methods improve. This is a catalogue record, not a forecast.