4.9

M4.9 Earthquake 121 km WNW of Kirakira, Solomon IslandsJune 22, 2023

2023-06-22 00:26:16 UTC (2023-06-22) · approx. 11:26 AM UTC+11 local

MagnitudeM4.9(mb)
Time00:26 UTC11:26 AM UTC+11
Depth48.4 kmshallow crustal
Coordinates-10.069°, 160.880°
Felt byNo felt reports
Status✓ Reviewed by USGS

On June 22, 2023 at 00:26 UTC, a magnitude 4.9 shallow crustal earthquake struck 121 km WNW of Kirakira, Solomon Islands, at a depth of 48.4 km and coordinates -10.0688°, 160.8802°. This earthquake was detected by 80 seismic stations with good location accuracy and was assigned a USGS significance rating of 369, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -10.07°, 160.88°

Earthquake Details

Magnitude
4.9 mb
Depth
48.4 km
shallow crustal
Location
-10.0688°N
160.8802°E

Technical Information

Event ID
us7000ka8n
Event Type
earthquake
Status
✓ Reviewed
Significance
369
Stations Used
80
Azimuthal Gap
100.0°
Min Station Distance
1.112°
RMS Residual
0.42 sec
Last Updated
2023-08-26 20:54:26 UTC

Common Questions

How strong was the magnitude 4.9 earthquake near Kirakira, Solomon Islands?

The magnitude 4.9 earthquake that struck 121 km WNW of Kirakira, Solomon Islands on June 22, 2023 at 00:26 UTC had a depth of 48.4 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -10.0688°, 160.8802°, which is 121 km WNW of Kirakira, Solomon Islands.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us7000ka8n). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, June 22, 2023). M4.9 Earthquake 121 km WNW of Kirakira, Solomon IslandsJune 22, 2023. Retrieved August 26, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000ka8n/