Taiwan earthquakes

M4.5 earthquake 35 km SE of Puli, Taiwan

A magnitude 4.5 earthquake struck 35 km SE of Puli, Taiwan on Tue, Sep 21, 1999, 2:32 AM GMT+8 (18:32 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M6.5 31 km SE of Puli, Taiwan. This one was a foreshock.

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

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The earthquake

Magnitude
4.5 (mb), light
Local time
UTC
1999-09-20 18:32:55 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
23.747° N, 121.219° E
Region
Taiwan
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Depth from
OPERATOR_ASSIGNED

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 178 in the 60 days after this one and 6 in the 30 days before it.

After

The first 60 of 178.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0009eqa. Read Tue, Sep 29, 2026, 9:32 PM UTC.