4.4

M4.4 Earthquake 62 km ESE of Pope-Vannoy Landing, AlaskaSeptember 14, 2023

2023-09-14 22:35:05 UTC (2023-09-14) · approx. 12:35 PM UTC-10 local

MagnitudeM4.4(mb)
Time22:35 UTC12:35 PM UTC-10
Depth103.7 kmintermediate depth
Coordinates59.314°, -153.501°
Felt byNo felt reports
Status✓ Reviewed by USGS· Tsunami evaluation
Tsunami Warning Issued

On September 14, 2023 at 22:35 UTC, a magnitude 4.4 intermediate depth earthquake struck 62 km ESE of Pope-Vannoy Landing, Alaska, at a depth of 103.7 km and coordinates 59.3137°, -153.5008°.

Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 59.31°, -153.50°

ShakeMap — predicted shaking intensity

Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.

USGS ShakeMap intensity contours for the M4.4 earthquake near 62 km ESE of Pope-Vannoy Landing, Alaska

Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS

Earthquake Details

Magnitude
4.4 mb
Depth
103.7 km
intermediate depth
Location
59.3137°N
-153.5008°E
Intensity (MMI)
3.1
light

Technical Information

Event ID
ak023btef8mo
Event Type
earthquake
Status
✓ Reviewed
Significance
298
RMS Residual
0.89 sec
Last Updated
2023-11-18 22:29:34 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Pope-Vannoy Landing, Alaska?

The magnitude 4.4 earthquake that struck 62 km ESE of Pope-Vannoy Landing, Alaska on September 14, 2023 at 22:35 UTC had a depth of 103.7 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.4 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.4 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: ak023btef8mo). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, September 14, 2023). M4.4 Earthquake 62 km ESE of Pope-Vannoy Landing, AlaskaSeptember 14, 2023. Retrieved November 18, 2023 from https://www.earthquaketracker.org/earthquakes/event/ak023btef8mo/