5.0

M5.0 Earthquake 56 km WSW of Rabaul, Papua New Guinea — July 2, 2021

2021-07-02 06:59:42 UTC (2021-07-02) · approx. 4:59 PM UTC+10 local

MagnitudeM5.0(mb)
Time06:59 UTC≈ 4:59 PM UTC+10
Depth216.1 kmintermediate depth
Coordinates-4.422°, 151.706°
Felt byNo felt reports
Status✓ Reviewed by USGS

On July 2, 2021 at 06:59 UTC, a magnitude 5.0 intermediate depth earthquake struck 56 km WSW of Rabaul, Papua New Guinea, at a depth of 216.1 km and coordinates -4.4220°, 151.7060°.

Physical scale: An earthquake of magnitude 5.0 releases seismic energy equivalent to roughly 477 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.7 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 -4.42°, 151.71°

Earthquake Details

Magnitude
5.0 mb
Depth
216.1 km
intermediate depth
Location
-4.4220°N
151.7060°E

Technical Information

Event ID
us7000ei5u
Event Type
earthquake
Status
✓ Reviewed
Significance
385
Azimuthal Gap
44.0°
Min Station Distance
0.510°
RMS Residual
0.69 sec
Last Updated
2025-12-22 19:03:22 UTC

Common Questions

How strong was the magnitude 5.0 earthquake near Rabaul, Papua New Guinea?

The magnitude 5.0 earthquake that struck 56 km WSW of Rabaul, Papua New Guinea on July 2, 2021 at 06:59 UTC had a depth of 216.1 km. For context, this was a moderate earthquake that could be widely felt.

Where did the earthquake occur?

The earthquake epicenter was located at -4.4220°, 151.7060°, which is 56 km WSW of Rabaul, 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 5.0 earthquakes can continue for days to weeks 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 5.0 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us7000ei5u). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, July 2, 2021). M5.0 Earthquake 56 km WSW of Rabaul, Papua New Guinea — July 2, 2021. Retrieved December 22, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000ei5u/