5.1

M5.1 Earthquake 53 km NW of Auki, Solomon IslandsMay 4, 2023

2023-05-04 22:20:34 UTC (2023-05-04) · approx. 9:20 AM UTC+11 local

MagnitudeM5.1(mb)
Time22:20 UTC9:20 AM UTC+11
Depth10.0 kmshallow crustal
Coordinates-8.402°, 160.386°
Felt byNo felt reports
Status✓ Reviewed by USGS

On May 4, 2023 at 22:20 UTC, a magnitude 5.1 shallow crustal earthquake struck 53 km NW of Auki, Solomon Islands, at a depth of 10.0 km and coordinates -8.4015°, 160.3855°. This earthquake was detected by 82 seismic stations with good location accuracy and was assigned a USGS significance rating of 400, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 5.1 releases seismic energy equivalent to roughly 674 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.0 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -8.40°, 160.39°

Earthquake Details

Magnitude
5.1 mb
Depth
10.0 km
shallow crustal
Location
-8.4015°N
160.3855°E

Technical Information

Event ID
us6000k9k8
Event Type
earthquake
Status
✓ Reviewed
Significance
400
Stations Used
82
Azimuthal Gap
105.0°
Min Station Distance
9.179°
RMS Residual
0.68 sec
Last Updated
2023-07-15 22:09:41 UTC

Common Questions

How strong was the magnitude 5.1 earthquake near Auki, Solomon Islands?

The magnitude 5.1 earthquake that struck 53 km NW of Auki, Solomon Islands on May 4, 2023 at 22:20 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.

Where did the earthquake occur?

The earthquake epicenter was located at -8.4015°, 160.3855°, which is 53 km NW of Auki, Solomon Islands.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.1 earthquakes can continue for days to weeks and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000k9k8). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, May 4, 2023). M5.1 Earthquake 53 km NW of Auki, Solomon IslandsMay 4, 2023. Retrieved July 15, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000k9k8/