4.5

M4.5 Earthquake 130 km S of Kokopo, Papua New GuineaMay 24, 2025

2025-05-24 22:19:02 UTC (2025-05-24) · approx. 8:19 AM UTC+10 local

MagnitudeM4.5(mb)
Time22:19 UTC8:19 AM UTC+10
Depth58.5 kmshallow crustal
Coordinates-5.522°, 152.261°
Felt byNo felt reports
Status✓ Reviewed by USGS

On May 24, 2025 at 22:19 UTC, a magnitude 4.5 shallow crustal earthquake struck 130 km S of Kokopo, Papua New Guinea, at a depth of 58.5 km and coordinates -5.5220°, 152.2612°. This earthquake was detected by 51 seismic stations with good location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.

The epicenter is located in Papua New Guinea, a region characterized by the collision and subduction of the Pacific, Australian, and Solomon Sea plates. View all earthquakes in Papua New Guinea.

Learn more: Magnitude scale · Aftershock sequences

Map showing earthquake epicenter at -5.52°, 152.26°

Earthquake Details

Magnitude
4.5 mb
Depth
58.5 km
shallow crustal
Location
-5.5220°N
152.2612°E

Technical Information

Event ID
us7000q1ba
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Stations Used
51
Azimuthal Gap
161.0°
Min Station Distance
5.983°
RMS Residual
0.80 sec
Last Updated
2025-08-13 15:14:32 UTC

Common Questions

How strong was the magnitude 4.5 earthquake near Kokopo, Papua New Guinea?

The magnitude 4.5 earthquake that struck 130 km S of Kokopo, Papua New Guinea on May 24, 2025 at 22:19 UTC had a depth of 58.5 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -5.5220°, 152.2612°, which is 130 km S of Kokopo, Papua New Guinea. View all earthquakes in Papua New Guinea.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.

Has Papua New Guinea had earthquakes this big before?

The largest recorded earthquake in Papua New Guinea was the M8.0 New Britain earthquake of July 18, 1971. Today's magnitude 4.5 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us7000q1ba). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, May 24, 2025). M4.5 Earthquake 130 km S of Kokopo, Papua New GuineaMay 24, 2025. Retrieved August 13, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000q1ba/