4.4

M4.4 Earthquake 30 km SSW of Panguna, Papua New GuineaJune 11, 2023

2023-06-11 22:49:56 UTC (2023-06-11) · approx. 8:49 AM UTC+10 local

MagnitudeM4.4(mb)
Time22:49 UTC8:49 AM UTC+10
Depth232.6 kmintermediate depth
Coordinates-6.581°, 155.401°
Felt byNo felt reports
Status✓ Reviewed by USGS

On June 11, 2023 at 22:49 UTC, a magnitude 4.4 intermediate depth earthquake struck 30 km SSW of Panguna, Papua New Guinea, at a depth of 232.6 km and coordinates -6.5812°, 155.4008°.

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.

Map showing earthquake epicenter at -6.58°, 155.40°

Earthquake Details

Magnitude
4.4 mb
Depth
232.6 km
intermediate depth
Location
-6.5812°N
155.4008°E

Technical Information

Event ID
us7000k7ws
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
57
Azimuthal Gap
133.0°
Min Station Distance
4.003°
RMS Residual
0.53 sec
Last Updated
2024-01-18 20:16:12 UTC

Common Questions

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

The magnitude 4.4 earthquake that struck 30 km SSW of Panguna, Papua New Guinea on June 11, 2023 at 22:49 UTC had a depth of 232.6 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.

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: us7000k7ws). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, June 11, 2023). M4.4 Earthquake 30 km SSW of Panguna, Papua New GuineaJune 11, 2023. Retrieved January 18, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000k7ws/