Minor earthquake: M3.26 quake has struck near San Antonio in Puerto Rico

A minor earthquake magnitude 3.26 (ml/mb) has struck on Tuesday, 64 kilometers (40 miles) from San Antonio in Puerto Rico. The epicenter was at a depth of 26.63 km (17 miles). The temblor was picked up at 06:24:04 / 6:24 am (local time epicenter). Global date and time of event UTC/GMT: 30/12/25 / 2025-12-30 06:24:04 / December 30, 2025 @ 6:24 am. Event id: pr71503398. Ids that are associated to the earthquake: pr71503398. Exact location, longitude -67.544833333333° West, latitude 18.895333333333° North, depth = 26.63 km.

Nearest cities/city/villages to epicentrum/hypocenter was Añasco, Quebradillas, Moca (min 5000 pop). Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Event epicenter was 66 km (41 miles) from Aguadilla (c. 16 100 pop), 70 km (44 miles) from Isabela (c. 12 500 pop), 80 km (50 miles) from Añasco (c. 6 100 pop), 79 km (49 miles) from Quebradillas (c. 5 600 pop), 72 km (45 miles) from Moca (c. 5 000 pop).

In the past 24 hours, there have been two, in the last 10 days nine, in the past 30 days thirty-four and in the last 365 days four hundred and seventy-three earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. Each year there are an estimated 130,000 minor quakes 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: 64 km NW of San Antonio, Puerto Rico. This information comes from the USGS Earthquake Notification Service.

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Parameter	Value	Description
Magnitude	3.26 mb	The magnitude for the event.
Longitude	-67.544833333333° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	18.895333333333° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	26.63 km	Depth of the event in kilometers.
Place	64 km NW of San Antonio, Puerto Rico	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-12-30 06:24:04	Time when the event occurred. UTC/GMT
Updated	2025-12-30 06:42:34	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	164	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	pr	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,pr,	A comma-separated list of network contributors.
Number of Stations Used	5	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.8784	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.06 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	218	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	md	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	pr71503398	Id of event.
Event Code	71503398	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,pr71503398,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M3.26 quake has struck near San Antonio in Puerto Rico

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