M4.5 Earthquake 144 km SW of Tual, Indonesia — April 20, 2026
2026-04-20 21:25:54 UTC (4 hours ago)
On April 20, 2026 at 21:25 UTC, a magnitude 4.5 shallow crustal earthquake struck 144 km SW of Tual, Indonesia, at a depth of 10.0 km and coordinates -6.6633°, 131.9536°. This earthquake was detected by 14 seismic stations with good location accuracy and was assigned a USGS significance rating of 312, 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
Earthquake Details
131.9536°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.5 earthquake near Tual, Indonesia?
The magnitude 4.5 earthquake that struck 144 km SW of Tual, Indonesia on April 20, 2026 at 21:25 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -6.6633°, 131.9536°, which is 144 km SW of Tual, Indonesia. View all earthquakes in Indonesia.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 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 4.5 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.