5.0

M5.0 Earthquake 58 km S of Sand Point, Alaska — July 24, 2020

2020-07-24 03:07:08 UTC (2020-07-24) · approx. 4:07 PM UTC-11 local

Felt by 1 person across nearby locations.

MagnitudeM5.0(mww)
Time03:07 UTC≈ 4:07 PM UTC-11
Depth43.2 kmshallow crustal
Coordinates54.818°, -160.672°
Felt by1DYFI response
Status✓ Reviewed by USGS· Tsunami evaluation
Tsunami Warning Issued

On July 24, 2020 at 03:07 UTC, a magnitude 5.0 shallow crustal earthquake struck 58 km S of Sand Point, Alaska, at a depth of 43.2 km and coordinates 54.8180°, -160.6718°.

Physical scale: An earthquake of magnitude 5.0 releases seismic energy equivalent to roughly 477 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.7 km — a useful intuition for the size of the slip patch on the fault.

The epicenter is located in Alaska, a region characterized by Pacific Plate subduction beneath the North American Plate, producing frequent megathrust and crustal earthquakes along the Aleutian arc. The nearest mapped fault system is the Aleutian megathrust. View all earthquakes in Alaska.

Learn more: Magnitude scale · Aftershock sequences

Map showing earthquake epicenter at 54.82°, -160.67°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M5.0 earthquake near 58 km S of Sand Point, Alaska

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
5.0 mww
Depth
43.2 km
shallow crustal
Location
54.8180°N
-160.6718°E
Felt Reports
1
DYFI responses
Community Intensity
2.2
CDI from reports

Technical Information

Event ID
us6000b355
Event Type
earthquake
Status
✓ Reviewed
Significance
385
Azimuthal Gap
43.0°
Min Station Distance
0.544°
RMS Residual
0.90 sec
Last Updated
2025-12-22 18:38:41 UTC

Common Questions

How strong was the magnitude 5.0 earthquake near Sand Point, Alaska?

The magnitude 5.0 earthquake that struck 58 km S of Sand Point, Alaska on July 24, 2020 at 03:07 UTC had a depth of 43.2 km. For context, this was a moderate earthquake that could be widely felt.

Where did the earthquake occur?

The earthquake epicenter was located at 54.8180°, -160.6718°, which is 58 km S of Sand Point, Alaska. View all earthquakes in Alaska.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.0 earthquakes can continue for days to weeks and gradually diminish over time.

Has Alaska had earthquakes this big before?

The largest recorded earthquake in Alaska was the M9.2 Great Alaska earthquake of March 27, 1964. Today's magnitude 5.0 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us6000b355). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, July 24, 2020). M5.0 Earthquake 58 km S of Sand Point, Alaska — July 24, 2020. Retrieved December 22, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000b355/