M2.6 Earthquake 152 km SW of Yakutat, Alaska — September 21, 2020
2020-09-21 22:57:45 UTC (2020-09-21) · approx. 1:57 PM UTC-9 local
On September 21, 2020 at 22:57 UTC, a magnitude 2.6 shallow crustal earthquake struck 152 km SW of Yakutat, Alaska, at a depth of 10.0 km and coordinates 58.5469°, -141.5336°.
Physical scale: An earthquake of magnitude 2.6 releases seismic energy equivalent to roughly 120 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 37 m — a useful intuition for the size of the slip patch on the fault.
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.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-141.5336°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 2.6 earthquake near Yakutat, Alaska?
The magnitude 2.6 earthquake that struck 152 km SW of Yakutat, Alaska on September 21, 2020 at 22:57 UTC had a depth of 10.0 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 2.6 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 2.6 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us6000c3rx). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, September 21, 2020). M2.6 Earthquake 152 km SW of Yakutat, Alaska — September 21, 2020. Retrieved November 28, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000c3rx/