M4.1 earthquake 17 km SSE of Puli, Taiwan

A magnitude 4.1 earthquake struck 17 km SSE of Puli, Taiwan on Fri, Oct 1, 1999, 3:02 AM GMT+8 (19:02 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M6.3 66 km S of Hualien City, Taiwan. This one was a foreshock.

Map

Where this earthquake was located, with the others nearby. Select one for its page.

The USGS’s account of the effects of this earthquake.

Felt (IV JMA) in the epicentral area and (II JMA) at Tai-chung.

From the USGS event page for usp0009f81. U.S. Geological Survey text and figures are in the public domain.

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

Distance and direction from each place to the epicenter, with its forecast.

Within 100 km, magnitude 1.5 and up: 64 in the 60 days after this one and 123 in the 30 days before it.

The first 60 of 64.

From the USGS Earthquake Hazards Program and its partner networks, event usp0009f81. Read Thu, Oct 1, 2026, 5:54 AM UTC.