Minor earthquake, 3.43 mag was detected near Arecibo in Puerto Rico

A minor earthquake with magnitude 3.43 (ml/mb) was detected on Saturday, 67 kilometers (42 miles) from Arecibo in Puerto Rico. The earthquake occurred at a depth of 30.8 km (19 miles). Exact location of earthquake, -66.576666666667° West, 19.065166666667° North, depth 30.8 km. The temblor was detected at 20:10:36 / 8:10 pm (local time epicenter). Unique identifier: pr71481953. Ids that are associated to the event: pr71481953. Global time and date of event 10/05/25 / 2025-05-10 20:10:36 / May 10, 2025 @ 8:10 pm UTC/GMT.

Closest city/cities/towns to epicentrum/hypocenter was Candelaria, San Juan, Toa Alta (min 5000 pop). Epicenter of the earthquake was 83 km (52 miles) from San Juan (c. 418 100 pop), 68 km (42 miles) from Arecibo (c. 49 300 pop), 80 km (50 miles) from Levittown (c. 29 800 pop), 72 km (45 miles) from Vega Baja (c. 29 300 pop), 68 km (43 miles) from Barceloneta (c. 22 300 pop). Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

In the past 24 hours, there have been four, in the last 10 days twelve, in the past 30 days thirty-nine and in the last 365 days three hundred and fourty-six 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. There are an estimated 130,000 minor quakes in the world each year.

Did you feel the quake?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 67 km NNE of Arecibo, Puerto Rico. This data comes from the USGS Earthquake Notification Service.

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Parameter	Value	Description
Magnitude	3.43 mb	The magnitude for the event.
Longitude	-66.576666666667° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	19.065166666667° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	30.8 km	Depth of the event in kilometers.
Place	67 km NNE 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	2025-05-10 20:10:36	Time when the event occurred. UTC/GMT
Updated	2025-05-10 20:33:30	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	181	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	19	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.5866	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.27 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	273	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	pr71481953	Id of event.
Event Code	71481953	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,pr71481953,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.43 mag was detected near Arecibo in Puerto Rico

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