Minor earthquake: M3.39 quake has struck near Arecibo in Puerto Rico

A minor earthquake with magnitude 3.39 (ml/mb) was reported 80 kilometers (50 miles) from Arecibo in Puerto Rico on Friday. The temblor was detected at 13:08:34 / 1:08 pm (local time epicenter). All ids that are associated to the event: pr71501578. Unique identifier: pr71501578. The epicenter of the earthquake was roughly 31.58 km (20 miles) below the earth’s surface. Exact location of event, depth 31.58 km, -66.643° West, 19.194° North. Global time and date of event 05/12/25 / 2025-12-05 13:08:34 / December 5, 2025 @ 1:08 pm UTC/GMT.

Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Camuy, Hatillo, Arecibo. The epicenter was 81 km (50 miles) from Arecibo (c. 49 300 pop), 81 km (50 miles) from Hatillo (c. 5 600 pop), 82 km (51 miles) from Camuy (c. 4 200 pop). Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

There are an estimated 130,000 minor quakes in the world each year. In the past 24 hours, there have been one, in the last 10 days nine, in the past 30 days nineteen and in the last 365 days three hundred and fourty-four earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 80 km N of Arecibo, Puerto Rico.

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Parameter	Value	Description
Magnitude	3.39 mb	The magnitude for the event.
Longitude	-66.643° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	19.194° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	31.58 km	Depth of the event in kilometers.
Place	80 km N of Arecibo, 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	2025-12-05 13:08:34	Time when the event occurred. UTC/GMT
Updated	2025-12-05 13:31:06	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	177	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	11	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.7212	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.22 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	293	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	pr71501578	Id of event.
Event Code	71501578	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,pr71501578,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M3.39 quake has struck near Arecibo in Puerto Rico

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