EARTHQUAKEM5.2

M5.2 earthquake near Gorontalo, Indonesia

Map: the earthquake near Gorontalo, Indonesia, with plate boundaries

A magnitude 5.2 earthquake struck 149 km (93 mi) west of Gorontalo, Indonesia on Sunday, October 11, 2026 at 21:34 UTC, at a depth of 110 km (68 mi), according to the U.S. Geological Survey. At this intermediate depth, shaking spreads out before it reaches the surface. The nearest city of a million or more people is Makassar, Indonesia, about 680 km (422 mi) away.

MagnitudeM5.2
Depth110 km (68 mi)
Time (UTC)Oct 11 21:34
Location0.53°N 121.72°E
Nearest townGorontalo · 149 km
Energy951 tons TNT
Aftershocks M2.5+0
Tsunami flagNo
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Why here?

This earthquake struck 110 km (68 mi) down, about 760 km (472 mi) from the nearest plate boundary on the surface. Quakes this deep happen inside old ocean plate that has sunk far into the mantle at a subduction zone, long after it dove beneath its neighbor. Their great depth spreads the shaking over a wide area but usually keeps it gentle at the surface.

The red lines on the map are plate boundaries.

What kind of fault?

USGS’s analysis of the seismic waves shows it was a thrust (reverse) earthquake: one block of crust was pushed up and over another, as happens where plates collide.

How strong was it?

Magnitude is logarithmic: each whole step releases about 32 times more energy. This magnitude 5.2 released roughly the energy of 951 tons of TNT. That is about 63 times the energy of a magnitude 4.0, a quake people nearby feel but that rarely causes damage. The strongest earthquake ever recorded, magnitude 9.5 in Chile in 1960, released about 2,800,000 times more than this one.

Aftershocks

In the first 14 days after it, USGS recorded no smaller earthquakes of magnitude 2.5 or more within 100 km (62 mi).

Outside the United States, USGS mainly lists quakes of about magnitude 4 and up, so smaller aftershocks there are undercounted.

Earthquake history here

Before this earthquake, USGS had recorded 107 earthquakes of magnitude 6 or larger within 300 km (186 mi) since 1900. The strongest:

Official details, updates and the shaking map: USGS event page.

See every earthquake on October 11, 2026 or earthquakes by day.

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