M4.5 68 km SSE of Old Harbor, Alaska

usp000354q · 1987-05-20T05:10:02Z · 56.659, -152.786

Magnitude

M4.5

Depth

33 km

Sweep radius

500 km

Status

reviewed

drawing…

The record

Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.

start_utc	1987-05-20T05:10:02.720000-04:00
end_utc	1987-05-20T05:10:02.720000-04:00
lat	56.659
lon	-152.786
n_obs	0
origin_utc	1987-05-20T05:10:02.720000-04:00
place	68 km SSE of Old Harbor, Alaska
tsunami_flag	0
provenance	`[{"source_slug":"usgs_earthquake","name":"USGS Earthquake","url":"https://earthquake.usgs.gov/fdsnws/event/1/query","retrieved_utc":"2026-07-01"}]`
last_fix_utc	1987-05-20T05:10:02.720000-04:00
window_hours_before	6
window_hours_after	48
total_sensor_hits	0

Storage: dossier · event_storehouse/eq/usp000354q.json · source record ↗