5.0

M5.0 Earthquake 40 km NW of Tulagi, Solomon IslandsAugust 4, 2025

2025-08-04 03:54:22 UTC (2025-08-04) · approx. 2:54 PM UTC+11 local

Felt by 4 people across nearby locations.

MagnitudeM5.0(mb)
Time03:54 UTC2:54 PM UTC+11
Depth78.8 kmintermediate depth
Coordinates-8.894°, 159.846°
Felt by4DYFI responses
Status✓ Reviewed by USGS

On August 4, 2025 at 03:54 UTC, a magnitude 5.0 intermediate depth earthquake struck 40 km NW of Tulagi, Solomon Islands, at a depth of 78.8 km and coordinates -8.8943°, 159.8465°. This earthquake was detected by 60 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 387, placing it among routine seismic activity.

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.

Map showing earthquake epicenter at -8.89°, 159.85°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 4 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M5.0 earthquake near 40 km NW of Tulagi, Solomon Islands

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
5.0 mb
Depth
78.8 km
intermediate depth
Location
-8.8943°N
159.8465°E
Felt Reports
4
DYFI responses
Community Intensity
6.3
CDI from reports

Technical Information

Event ID
us6000qxzt
Event Type
earthquake
Status
✓ Reviewed
Significance
387
Stations Used
60
Azimuthal Gap
38.0°
Min Station Distance
0.550°
RMS Residual
1.02 sec
Last Updated
2025-10-17 22:51:42 UTC

Common Questions

How strong was the magnitude 5.0 earthquake near Tulagi, Solomon Islands?

The magnitude 5.0 earthquake that struck 40 km NW of Tulagi, Solomon Islands on August 4, 2025 at 03:54 UTC had a depth of 78.8 km. For context, this was a moderate earthquake that could be widely felt.

Where did the earthquake occur?

The earthquake epicenter was located at -8.8943°, 159.8465°, which is 40 km NW of Tulagi, Solomon Islands.

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.

Authoritative source: USGS event page (event ID: us6000qxzt). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, August 4, 2025). M5.0 Earthquake 40 km NW of Tulagi, Solomon IslandsAugust 4, 2025. Retrieved October 17, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000qxzt/