4.4

M4.4 Earthquake 91 km NNW of Finschhafen, Papua New GuineaAugust 31, 2022

2022-08-31 20:41:43 UTC (2022-08-31) · approx. 6:41 AM UTC+10 local

MagnitudeM4.4(mb)
Time20:41 UTC6:41 AM UTC+10
Depth108.5 kmintermediate depth
Coordinates-5.839°, 147.445°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 31, 2022 at 20:41 UTC, a magnitude 4.4 intermediate depth earthquake struck 91 km NNW of Finschhafen, Papua New Guinea, at a depth of 108.5 km and coordinates -5.8387°, 147.4452°.

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 -5.84°, 147.45°

Earthquake Details

Magnitude
4.4 mb
Depth
108.5 km
intermediate depth
Location
-5.8387°N
147.4452°E

Technical Information

Event ID
us7000i44n
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
55
Azimuthal Gap
51.0°
Min Station Distance
3.554°
RMS Residual
1.28 sec
Last Updated
2022-11-06 04:36:46 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Finschhafen, Papua New Guinea?

The magnitude 4.4 earthquake that struck 91 km NNW of Finschhafen, Papua New Guinea on August 31, 2022 at 20:41 UTC had a depth of 108.5 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: us7000i44n). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, August 31, 2022). M4.4 Earthquake 91 km NNW of Finschhafen, Papua New GuineaAugust 31, 2022. Retrieved November 6, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000i44n/