4.4

M4.4 Earthquake 53 km N of Finschhafen, Papua New GuineaMay 14, 2025

2025-05-14 21:22:26 UTC (2025-05-14) · approx. 7:22 AM UTC+10 local

MagnitudeM4.4(mb)
Time21:22 UTC7:22 AM UTC+10
Depth59.0 kmshallow crustal
Coordinates-6.087°, 147.757°
Felt byNo felt reports
Status✓ Reviewed by USGS

On May 14, 2025 at 21:22 UTC, a magnitude 4.4 shallow crustal earthquake struck 53 km N of Finschhafen, Papua New Guinea, at a depth of 59.0 km and coordinates -6.0866°, 147.7569°.

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.

This earthquake is part of an ongoing aftershock sequence following the magnitude 5.1 mainshock that occurred 29 days ago 21 km NW of Finschhafen, Papua New Guinea. Since the mainshock, the USGS has recorded 0 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.

Map showing earthquake epicenter at -6.09°, 147.76°

Earthquake Details

Magnitude
4.4 mb
Depth
59.0 km
shallow crustal
Location
-6.0866°N
147.7569°E

Technical Information

Event ID
us7000pz99
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
36
Azimuthal Gap
72.0°
Min Station Distance
3.349°
RMS Residual
0.41 sec
Last Updated
2025-07-25 17:06:15 UTC

Common Questions

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

The magnitude 4.4 earthquake that struck 53 km N of Finschhafen, Papua New Guinea on May 14, 2025 at 21:22 UTC had a depth of 59.0 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.

Is this the same earthquake as the M5.1 one earlier?

No. This magnitude 4.4 earthquake is an aftershock of the larger magnitude 5.1 mainshock that occurred earlier 21 km NW of Finschhafen, Papua New Guinea. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.

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: us7000pz99). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, May 14, 2025). M4.4 Earthquake 53 km N of Finschhafen, Papua New GuineaMay 14, 2025. Retrieved July 25, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000pz99/