Light earthquake, 4.3 mag has occurred near Hualien City in Taiwan

A light earthquake with magnitude 4.3 (ml/mb) was reported 65 kilometers (40 miles) from Hualien City in Taiwan on Saturday. Event ids that are associated to the earthquake: us6000rm42. Id of event: us6000rm42. The 4.3-magnitude earthquake has occurred at 07:31:42 / 7:31 am (local time epicenter). Exact time and date of event in UTC/GMT: 18/10/25 / 2025-10-18 07:31:42 / October 18, 2025 @ 7:31 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude 121.5782 East, latitude 23.3832 North, depth = 35.111 km. The epicenter of the earthquake was roughly 35.111 km (22 miles) below the earth’s surface.

Close country/countries that might be effected, Taiwan (c. 22 894 000 pop). Epicenter of the earthquake was 66 km (41 miles) from Hualian (c. 350 500 pop), 82 km (51 miles) from Taitung City (c. 109 600 pop), 90 km (56 miles) from Puli (c. 86 400 pop), 93 km (58 miles) from Lugu (c. 19 600 pop). Closest city/cities/towns to epicentrum/hypocenter was Lugu, Puli, Taitung City (min 5000 pop).

In the past 24 hours, there have been three, in the last 10 days three, in the past 30 days seven and in the last 365 days seventy-one earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Each year there are an estimated 13,000 light earthquakes in the world.

Did you feel the quake?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 65 km S of Hualien City, Taiwan. This information comes from the USGS Earthquake Notification Service.

More information

Parameter	Value	Description
Magnitude	4.3 mb	The magnitude for the event.
Longitude	121.5782° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	23.3832° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	35.111 km	Depth of the event in kilometers.
Place	65 km S of Hualien City, Taiwan	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-10-18 07:31:42	Time when the event occurred. UTC/GMT
Updated	2025-11-09 07:29:33	Time when the event was most recently updated. UTC/GMT
Timezone offset		Timezone offset from UTC in minutes at the event epicenter.
Felt		The total number of felt reports
CDI		The maximum reported intensity for the event.
MMI		The maximum estimated instrumental intensity for the event.
Alert Level		The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status	reviewed	Indicates whether the event has been reviewed by a human.
Tsunami	0	This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG	284	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	us	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,us,	A comma-separated list of network contributors.
Number of Stations Used	27	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.258	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.58 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	95	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	mb	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	us6000rm42	Id of event.
Event Code	6000rm42	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000rm42,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.3 mag has occurred near Hualien City in Taiwan

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