M4.5 62 km SW of Nikolski, Alaska

usp0000624 · 1974-04-22T00:31:00Z · 52.558, -169.551

Magnitude

M4.5

Depth

32 km

Sensor hits

Observations

drawing…

The record

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

start_utc	1974-04-22T00:31:00.500000-04:00
end_utc	1974-04-22T00:31:00.500000-04:00
lat	52.558
lon	-169.551
origin_utc	1974-04-22T00:31:00.500000-04:00
place	62 km SW of Nikolski, Alaska
status	reviewed
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	1974-04-22T00:31:00.500000-04:00
radius_km	500
window_hours_before	6
window_hours_after	48

Storage: dossier · event_storehouse/eq/usp0000624.json · source record ↗