M4.7 20 km SSE of Tonsina, Alaska

usp0000742 · 1974-07-13T08:44:50Z · 61.492, -145.007

Magnitude

M4.7

Depth

55 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	1974-07-13T08:44:50.700000-04:00
end_utc	1974-07-13T08:44:50.700000-04:00
lat	61.492
lon	-145.007
origin_utc	1974-07-13T08:44:50.700000-04:00
place	20 km SSE of Tonsina, 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	1974-07-13T08:44:50.700000-04:00
radius_km	500
window_hours_before	6
window_hours_after	48

Storage: dossier · event_storehouse/eq/usp0000742.json · source record ↗