4.5

M4.5 Earthquake 110 km SE of Honiara, Solomon IslandsOctober 8, 2022

2022-10-08 19:13:33 UTC (2022-10-08) · approx. 6:13 AM UTC+11 local

MagnitudeM4.5(mb)
Time19:13 UTC6:13 AM UTC+11
Depth35.0 kmshallow crustal
Coordinates-10.137°, 160.660°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 8, 2022 at 19:13 UTC, a magnitude 4.5 shallow crustal earthquake struck 110 km SE of Honiara, Solomon Islands, at a depth of 35.0 km and coordinates -10.1373°, 160.6604°. This earthquake was detected by 46 seismic stations with good location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -10.14°, 160.66°

Earthquake Details

Magnitude
4.5 mb
Depth
35.0 km
shallow crustal
Location
-10.1373°N
160.6604°E

Technical Information

Event ID
us6000itd0
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Stations Used
46
Azimuthal Gap
105.0°
Min Station Distance
0.988°
RMS Residual
0.72 sec
Last Updated
2022-12-17 22:54:02 UTC

Common Questions

How strong was the magnitude 4.5 earthquake near Honiara, Solomon Islands?

The magnitude 4.5 earthquake that struck 110 km SE of Honiara, Solomon Islands on October 8, 2022 at 19:13 UTC had a depth of 35.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -10.1373°, 160.6604°, which is 110 km SE of Honiara, Solomon Islands.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000itd0). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, October 8, 2022). M4.5 Earthquake 110 km SE of Honiara, Solomon IslandsOctober 8, 2022. Retrieved December 17, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000itd0/