M3.9 earthquake 28 km ESE of Puli, Taiwan

A magnitude 3.9 earthquake struck 28 km ESE of Puli, Taiwan on Wed, Sep 29, 1999, 1:16 AM GMT+8 (17:16 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 (III JMA) in the epicentral area and (II JMA) at Chia-i and Tai-chung.

From the USGS event page for usp0009f5r. 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 118 in the 30 days before it.

The first 60 of 64.

From the USGS Earthquake Hazards Program and its partner networks, event usp0009f5r. Read Fri, Oct 2, 2026, 3:24 AM UTC.