2.5

M2.5 Earthquake 3 km WSW of Funny River, Alaska — August 2, 2020

2020-08-02 21:37:40 UTC (2020-08-02) · approx. 11:37 AM UTC-10 local

MagnitudeM2.5(ml)
Time21:37 UTC≈ 11:37 AM UTC-10
Depth47.2 kmshallow crustal
Coordinates60.488°, -150.815°
Felt by2DYFI responses
Status✓ Reviewed by USGS

On August 2, 2020 at 21:37 UTC, a magnitude 2.5 shallow crustal earthquake struck 3 km WSW of Funny River, Alaska, at a depth of 47.2 km and coordinates 60.4879°, -150.8147°.

Physical scale: An earthquake of magnitude 2.5 releases seismic energy equivalent to roughly 84.8 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 32 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 60.49°, -150.81°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 2 citizen responses 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 M2.5 earthquake near 3 km WSW of Funny River, Alaska

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

Earthquake Details

Magnitude
2.5 ml
Depth
47.2 km
shallow crustal
Location
60.4879°N
-150.8147°E
Felt Reports
2
DYFI responses
Community Intensity
2.0
CDI from reports

Technical Information

Event ID
ak0209vx9qfl
Event Type
earthquake
Status
✓ Reviewed
Significance
97
RMS Residual
0.69 sec
Last Updated
2020-10-10 17:11:10 UTC

Common Questions

How strong was the magnitude 2.5 earthquake near Funny River, Alaska?

The magnitude 2.5 earthquake that struck 3 km WSW of Funny River, Alaska on August 2, 2020 at 21:37 UTC had a depth of 47.2 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 2.5 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 2.5 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: ak0209vx9qfl). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, August 2, 2020). M2.5 Earthquake 3 km WSW of Funny River, Alaska — August 2, 2020. Retrieved October 10, 2020 from https://www.earthquaketracker.org/earthquakes/event/ak0209vx9qfl/