4.4

M4.4 Earthquake 135 km SE of Bitung, IndonesiaJanuary 2, 2026

2026-01-02 20:24:34 UTC (2026-01-02) · approx. 4:24 AM UTC+8 local

MagnitudeM4.4(mb)
Time20:24 UTC4:24 AM UTC+8
Depth51.2 kmshallow crustal
Coordinates0.527°, 125.947°
Felt byNo felt reports
Status✓ Reviewed by USGS

On January 2, 2026 at 20:24 UTC, a magnitude 4.4 shallow crustal earthquake struck 135 km SE of Bitung, Indonesia, at a depth of 51.2 km and coordinates 0.5275°, 125.9465°.

Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.

This earthquake is part of an ongoing aftershock sequence following the magnitude 5.0 mainshock that occurred 26 days ago 140 km SSE of Bitung, Indonesia. Since the mainshock, the USGS has recorded 2 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.

Map showing earthquake epicenter at 0.53°, 125.95°

Earthquake Details

Magnitude
4.4 mb
Depth
51.2 km
shallow crustal
Location
0.5275°N
125.9465°E

Technical Information

Event ID
us7000rrfi
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
18
Azimuthal Gap
110.0°
Min Station Distance
4.203°
RMS Residual
0.74 sec
Last Updated
2026-04-07 22:12:00 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Bitung, Indonesia?

The magnitude 4.4 earthquake that struck 135 km SE of Bitung, Indonesia on January 2, 2026 at 20:24 UTC had a depth of 51.2 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 4.4 earthquakes can continue for several days and gradually diminish over time.

Is this the same earthquake as the M5.0 one earlier?

No. This magnitude 4.4 earthquake is an aftershock of the larger magnitude 5.0 mainshock that occurred earlier 140 km SSE of Bitung, Indonesia. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.

Authoritative source: USGS event page (event ID: us7000rrfi). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, January 2, 2026). M4.4 Earthquake 135 km SE of Bitung, IndonesiaJanuary 2, 2026. Retrieved May 14, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000rrfi/