4.0

M4.0 Earthquake 198 km W of Abepura, IndonesiaJune 19, 2026

2026-06-19 12:51:20 UTC (2026-06-19) · approx. 9:51 PM UTC+9 local

MagnitudeM4.0(mb)
Time12:51 UTC9:51 PM UTC+9
Depth51.7 kmshallow crustal
Coordinates-2.822°, 138.865°
Felt byNo felt reports
Status✓ Reviewed by USGS

On June 19, 2026 at 12:51 UTC, a magnitude 4.0 shallow crustal earthquake struck 198 km W of Abepura, Indonesia, at a depth of 51.7 km and coordinates -2.8216°, 138.8650°.

Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 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 5.1 mainshock that occurred 3 hours ago 194 km W of Abepura, Indonesia. Since the mainshock, the USGS has recorded 9 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 -2.82°, 138.87°

Earthquake Details

Magnitude
4.0 mb
Depth
51.7 km
shallow crustal
Location
-2.8216°N
138.8650°E

Technical Information

Event ID
us6000t865
Event Type
earthquake
Status
✓ Reviewed
Significance
246
Stations Used
21
Azimuthal Gap
87.0°
Min Station Distance
1.861°
RMS Residual
0.80 sec
Last Updated
2026-07-13 11:32:34 UTC

Common Questions

How strong was the magnitude 4.0 earthquake near Abepura, Indonesia?

The magnitude 4.0 earthquake that struck 198 km W of Abepura, Indonesia on June 19, 2026 at 12:51 UTC had a depth of 51.7 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 4.0 earthquakes can continue for several days and gradually diminish over time.

Is this the same earthquake as the M5.1 one earlier?

No. This magnitude 4.0 earthquake is an aftershock of the larger magnitude 5.1 mainshock that occurred earlier 194 km W of Abepura, Indonesia. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.

Understanding This Data

Magnitude 4.0 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000t865). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, June 19, 2026). M4.0 Earthquake 198 km W of Abepura, IndonesiaJune 19, 2026. Retrieved July 13, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000t865/