4.8

M4.8 Earthquake 82 km W of Ambunti, Papua New GuineaJune 6, 2026

2026-06-06 04:27:08 UTC (49 min ago) · approx. 1:27 PM UTC+9 local

MagnitudeM4.8(mb)
Time04:27 UTC1:27 PM UTC+9
Depth93.0 kmintermediate depth
Coordinates-4.325°, 142.083°
Felt byNo felt reports
Status✓ Reviewed by USGS

On June 6, 2026 at 04:27 UTC, a magnitude 4.8 intermediate depth earthquake struck 82 km W of Ambunti, Papua New Guinea, at a depth of 93.0 km and coordinates -4.3252°, 142.0826°. This earthquake was detected by 15 seismic stations with good location accuracy and was assigned a USGS significance rating of 354, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.8 releases seismic energy equivalent to roughly 239 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.2 km — 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 -4.33°, 142.08°

Earthquake Details

Magnitude
4.8 mb
Depth
93.0 km
intermediate depth
Location
-4.3252°N
142.0826°E

Technical Information

Event ID
us7000sr20
Event Type
earthquake
Status
✓ Reviewed
Significance
354
Stations Used
15
Azimuthal Gap
104.0°
Min Station Distance
2.265°
RMS Residual
0.90 sec
Last Updated
2026-06-06 04:45:55 UTC

Common Questions

How strong was the magnitude 4.8 earthquake near Ambunti, Papua New Guinea?

The magnitude 4.8 earthquake that struck 82 km W of Ambunti, Papua New Guinea on June 6, 2026 at 04:27 UTC had a depth of 93.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -4.3252°, 142.0826°, which is 82 km W of Ambunti, 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 4.8 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 4.8 event is significantly smaller than that historical record.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.

Authoritative source: USGS event page (event ID: us7000sr20). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, June 6, 2026). M4.8 Earthquake 82 km W of Ambunti, Papua New GuineaJune 6, 2026. Retrieved June 6, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000sr20/