4.6

M4.6 Earthquake 38 km SE of Madang, Papua New GuineaJuly 26, 2024

2024-07-26 14:02:35 UTC (2024-07-26) · approx. 12:02 AM UTC+10 local

MagnitudeM4.6(mb)
Time14:02 UTC12:02 AM UTC+10
Depth91.7 kmintermediate depth
Coordinates-5.453°, 146.042°
Felt byNo felt reports
Status✓ Reviewed by USGS

On July 26, 2024 at 14:02 UTC, a magnitude 4.6 intermediate depth earthquake struck 38 km SE of Madang, Papua New Guinea, at a depth of 91.7 km and coordinates -5.4534°, 146.0417°. This earthquake was detected by 50 seismic stations with good location accuracy and was assigned a USGS significance rating of 326, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 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 -5.45°, 146.04°

Earthquake Details

Magnitude
4.6 mb
Depth
91.7 km
intermediate depth
Location
-5.4534°N
146.0417°E

Technical Information

Event ID
us6000ng4k
Event Type
earthquake
Status
✓ Reviewed
Significance
326
Stations Used
50
Azimuthal Gap
99.0°
Min Station Distance
3.636°
RMS Residual
0.51 sec
Last Updated
2024-10-08 21:49:12 UTC

Common Questions

How strong was the magnitude 4.6 earthquake near Madang, Papua New Guinea?

The magnitude 4.6 earthquake that struck 38 km SE of Madang, Papua New Guinea on July 26, 2024 at 14:02 UTC had a depth of 91.7 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -5.4534°, 146.0417°, which is 38 km SE of Madang, 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 4.6 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 4.6 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us6000ng4k). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, July 26, 2024). M4.6 Earthquake 38 km SE of Madang, Papua New GuineaJuly 26, 2024. Retrieved October 8, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000ng4k/