4.7

M4.7 Earthquake 173 km WSW of Tual, IndonesiaApril 17, 2026

2026-04-17 22:19:21 UTC (1 day ago)

On April 17, 2026 at 22:19 UTC, a magnitude 4.7 intermediate depth earthquake struck 173 km WSW of Tual, Indonesia, at a depth of 73.7 km and coordinates -6.1878°, 131.2879°. This earthquake was detected by 30 seismic stations with good location accuracy and was assigned a USGS significance rating of 340, placing it among routine seismic activity.

The epicenter is located in Indonesia, a region characterized by the convergence of the Indo-Australian, Eurasian, and Philippine Sea plates, forming the Sunda-Banda arc system. The nearest mapped fault system is the Sunda megathrust. View all earthquakes in Indonesia.

Learn more: Magnitude scale · Aftershock sequences

Map showing earthquake epicenter at -6.19°, 131.29°

Earthquake Details

Magnitude
4.7 mb
Depth
73.7 km
intermediate depth
Location
-6.1878°N
131.2879°E

Technical Information

Event ID
us6000sqz7
Event Type
earthquake
Status
✓ Reviewed
Significance
340
Stations Used
30
Azimuthal Gap
108.0°
Min Station Distance
2.153°
RMS Residual
0.99 sec
Last Updated
2026-04-18 01:40:38 UTC

Common Questions

How strong was the magnitude 4.7 earthquake near Tual, Indonesia?

The magnitude 4.7 earthquake that struck 173 km WSW of Tual, Indonesia on April 17, 2026 at 22:19 UTC had a depth of 73.7 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -6.1878°, 131.2879°, which is 173 km WSW of Tual, Indonesia. View all earthquakes in Indonesia.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.

Has Indonesia had earthquakes this big before?

The largest recorded earthquake in Indonesia was the M9.1 Indian Ocean earthquake of December 26, 2004. Today's magnitude 4.7 event is significantly smaller than that historical record.

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.