Light earthquake, 4.6 mag strikes near Yonakuni in Japan

A light earthquake magnitude 4.6 (ml/mb) has struck on Saturday, 73 kilometers (45 miles) from Yonakuni in Japan. Exact time and date of earthquake 13/09/25 / 2025-09-13 04:46:16 / September 13, 2025 @ 4:46 am UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was detected at 04:46:16 / 4:46 am (local time epicenter). The earthquake occurred at a depth of 39.867 km (25 miles). Exact location of event, longitude 122.5318 East, latitude 23.9627 North, depth = 39.867 km. Event id: us7000qvxh. Ids that are associated to the earthquake: us7000qvxh.

The epicenter was 94 km (59 miles) from Hualian (c. 350 500 pop). Close country/countries, Taiwan (c. 22 894 000 pop) (That might be effected). Nearest cities/city/towns to hypocenter/epicentrum was Hualian (min 5000 pop).

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

Did you feel anything?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 73 km SW of Yonakuni, Japan. This data comes from the USGS Earthquake Notification Service.

More information

Parameter	Value	Description
Magnitude	4.6 mb	The magnitude for the event.
Longitude	122.5318° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	23.9627° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	39.867 km	Depth of the event in kilometers.
Place	73 km SW of Yonakuni, Japan	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-09-13 04:46:16	Time when the event occurred. UTC/GMT
Updated	2025-09-13 22:31:33	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	326	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	41	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.666	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.05 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	89	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	us7000qvxh	Id of event.
Event Code	7000qvxh	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us7000qvxh,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.6 mag strikes near Yonakuni in Japan

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