4.2

M4.2 Earthquake 88 km NNW of Kimbe, Papua New GuineaMarch 6, 2023

2023-03-06 21:45:53 UTC (2023-03-06) · approx. 7:45 AM UTC+10 local

MagnitudeM4.2(mb)
Time21:45 UTC7:45 AM UTC+10
Depth604.5 kmdeep-focus
Coordinates-4.837°, 149.773°
Felt byNo felt reports
Status✓ Reviewed by USGS

On March 6, 2023 at 21:45 UTC, a magnitude 4.2 deep-focus earthquake struck 88 km NNW of Kimbe, Papua New Guinea, at a depth of 604.5 km and coordinates -4.8365°, 149.7727°.

Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -4.84°, 149.77°

Earthquake Details

Magnitude
4.2 mb
Depth
604.5 km
deep-focus
Location
-4.8365°N
149.7727°E

Technical Information

Event ID
us7000jiwj
Event Type
earthquake
Status
✓ Reviewed
Significance
271
Stations Used
23
Azimuthal Gap
104.0°
Min Station Distance
2.468°
RMS Residual
0.70 sec
Last Updated
2023-05-15 02:50:25 UTC

Common Questions

How strong was the magnitude 4.2 earthquake near Kimbe, Papua New Guinea?

The magnitude 4.2 earthquake that struck 88 km NNW of Kimbe, Papua New Guinea on March 6, 2023 at 21:45 UTC had a depth of 604.5 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 4.2 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.2 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000jiwj). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, March 6, 2023). M4.2 Earthquake 88 km NNW of Kimbe, Papua New GuineaMarch 6, 2023. Retrieved May 15, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000jiwj/