3.2

M3.2 Earthquake near Gulf of AlaskaMarch 14, 2023

2023-03-14 18:54:48 UTC (2023-03-14) · approx. 8:54 AM UTC-10 local

MagnitudeM3.2(ml)
Time18:54 UTC8:54 AM UTC-10
Depth16.0 kmshallow crustal
Coordinates56.330°, -149.693°
Felt byNo felt reports
Status✓ Reviewed by USGS

On March 14, 2023 at 18:54 UTC, a magnitude 3.2 shallow crustal earthquake struck near Gulf of Alaska, at a depth of 16.0 km and coordinates 56.3303°, -149.6928°.

Physical scale: An earthquake of magnitude 3.2 releases seismic energy equivalent to roughly 951 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 97 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 56.33°, -149.69°

Earthquake Details

Magnitude
3.2 ml
Depth
16.0 km
shallow crustal
Location
56.3303°N
-149.6928°E

Technical Information

Event ID
us7000jm1v
Event Type
earthquake
Status
✓ Reviewed
Significance
158
Stations Used
23
Azimuthal Gap
264.0°
Min Station Distance
2.148°
RMS Residual
0.41 sec
Last Updated
2023-05-20 23:20:42 UTC

Common Questions

How strong was the magnitude 3.2 earthquake near Gulf of Alaska?

The magnitude 3.2 earthquake that struck near Gulf of Alaska on March 14, 2023 at 18:54 UTC had a depth of 16.0 km. For context, this was a minor earthquake typically detected only by instruments.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.2 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.2 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000jm1v). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, March 14, 2023). M3.2 Earthquake near Gulf of AlaskaMarch 14, 2023. Retrieved May 20, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000jm1v/