4.3

M4.3 Earthquake 60 km NNW of Lae, Papua New GuineaAugust 23, 2026

2026-08-23 10:44:51 UTC (1 hour ago) · approx. 8:44 PM UTC+10 local

MagnitudeM4.3(mb)
Time10:44 UTC8:44 PM UTC+10
Depth103.0 kmintermediate depth
Coordinates-6.203°, 146.822°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 23, 2026 at 10:44 UTC, a magnitude 4.3 intermediate depth earthquake struck 60 km NNW of Lae, Papua New Guinea, at a depth of 103.0 km and coordinates -6.2034°, 146.8216°.

Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -6.20°, 146.82°

Earthquake Details

Magnitude
4.3 mb
Depth
103.0 km
intermediate depth
Location
-6.2034°N
146.8216°E

Technical Information

Event ID
us6000tmyf
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
25
Azimuthal Gap
104.0°
Min Station Distance
3.198°
RMS Residual
0.95 sec
Last Updated
2026-08-23 11:12:06 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Lae, Papua New Guinea?

The magnitude 4.3 earthquake that struck 60 km NNW of Lae, Papua New Guinea on August 23, 2026 at 10:44 UTC had a depth of 103.0 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 4.3 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.3 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000tmyf). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, August 23, 2026). M4.3 Earthquake 60 km NNW of Lae, Papua New GuineaAugust 23, 2026. Retrieved August 23, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tmyf/