4.3

M4.3 Earthquake 40 km NNE of Tobelo, IndonesiaJanuary 1, 2023

2023-01-01 19:03:06 UTC (2023-01-01) · approx. 4:03 AM UTC+9 local

MagnitudeM4.3(mb)
Time19:03 UTC4:03 AM UTC+9
Depth153.8 kmintermediate depth
Coordinates2.075°, 128.135°
Felt byNo felt reports
Status✓ Reviewed by USGS

On January 1, 2023 at 19:03 UTC, a magnitude 4.3 intermediate depth earthquake struck 40 km NNE of Tobelo, Indonesia, at a depth of 153.8 km and coordinates 2.0751°, 128.1350°.

Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 2.08°, 128.13°

Earthquake Details

Magnitude
4.3 mb
Depth
153.8 km
intermediate depth
Location
2.0751°N
128.1350°E

Technical Information

Event ID
us7000j3y3
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
20
Azimuthal Gap
94.0°
Min Station Distance
1.506°
RMS Residual
0.57 sec
Last Updated
2023-03-11 22:51:46 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Tobelo, Indonesia?

The magnitude 4.3 earthquake that struck 40 km NNE of Tobelo, Indonesia on January 1, 2023 at 19:03 UTC had a depth of 153.8 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.3 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.3 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000j3y3). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, January 1, 2023). M4.3 Earthquake 40 km NNE of Tobelo, IndonesiaJanuary 1, 2023. Retrieved March 11, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000j3y3/