4.9

M4.9 Earthquake near Banda SeaFebruary 21, 2023

2023-02-21 16:15:53 UTC (2023-02-21) · approx. 1:15 AM UTC+9 local

MagnitudeM4.9(mww)
Time16:15 UTC1:15 AM UTC+9
Depth21.6 kmshallow crustal
Coordinates-6.255°, 130.097°
Felt byNo felt reports
Status✓ Reviewed by USGS

On February 21, 2023 at 16:15 UTC, a magnitude 4.9 shallow crustal earthquake struck near Banda Sea, at a depth of 21.6 km and coordinates -6.2551°, 130.0966°. This earthquake was detected by 86 seismic stations with excellent 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 -6.26°, 130.10°

Earthquake Details

Magnitude
4.9 mww
Depth
21.6 km
shallow crustal
Location
-6.2551°N
130.0966°E

Technical Information

Event ID
us6000jqku
Event Type
earthquake
Status
✓ Reviewed
Significance
369
Stations Used
86
Azimuthal Gap
38.0°
Min Station Distance
1.732°
RMS Residual
0.74 sec
Last Updated
2023-04-29 21:57:22 UTC

Common Questions

How strong was the magnitude 4.9 earthquake near Banda Sea?

The magnitude 4.9 earthquake that struck near Banda Sea on February 21, 2023 at 16:15 UTC had a depth of 21.6 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -6.2551°, 130.0966°, which is near Banda Sea.

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: us6000jqku). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, February 21, 2023). M4.9 Earthquake near Banda SeaFebruary 21, 2023. Retrieved April 29, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000jqku/