2.1

M2.1 Earthquake 46 km NNW of Chickaloon, AlaskaAugust 11, 2026

2026-08-11 20:36:38 UTC (5 days ago) · approx. 10:36 AM UTC-10 local

MagnitudeM2.1(ml)
Time20:36 UTC10:36 AM UTC-10
Depth21.9 kmshallow crustal
Coordinates62.202°, -148.651°
Felt by1DYFI response
Status✓ Reviewed by USGS

On August 11, 2026 at 20:36 UTC, a magnitude 2.1 shallow crustal earthquake struck 46 km NNW of Chickaloon, Alaska, at a depth of 21.9 km and coordinates 62.2020°, -148.6510°.

Physical scale: An earthquake of magnitude 2.1 releases seismic energy equivalent to roughly 21.3 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 17 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 62.20°, -148.65°

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 M2.1 earthquake near 46 km NNW of Chickaloon, Alaska

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

Earthquake Details

Magnitude
2.1 ml
Depth
21.9 km
shallow crustal
Location
62.2020°N
-148.6510°E
Felt Reports
1
DYFI responses
Community Intensity
1.0
CDI from reports

Technical Information

Event ID
aka2026pvqckq
Event Type
earthquake
Status
✓ Reviewed
Significance
68
Stations Used
51
Azimuthal Gap
32.0°
Min Station Distance
0.400°
RMS Residual
0.90 sec
Last Updated
2026-08-11 23:40:11 UTC

Common Questions

How strong was the magnitude 2.1 earthquake near Chickaloon, Alaska?

The magnitude 2.1 earthquake that struck 46 km NNW of Chickaloon, Alaska on August 11, 2026 at 20:36 UTC had a depth of 21.9 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 2.1 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 2.1 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: aka2026pvqckq). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, August 11, 2026). M2.1 Earthquake 46 km NNW of Chickaloon, AlaskaAugust 11, 2026. Retrieved August 11, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026pvqckq/