Minor earthquake, 3.51 mag strikes near San Juan in Puerto Rico

A minor earthquake magnitude 3.51 (ml/mb) strikes 78 kilometers (48 miles) from San Juan in Puerto Rico on Saturday. All ids that are associated to the event: us7000pv8i, pr2025116003. Unique identifier: pr2025116003. The 3.51-magnitude earthquake has occurred at 14:17:01 / 2:17 pm (local time epicenter). Exact location of earthquake, longitude -66.0293 West, latitude 19.1681 North, depth = 18 km. Date and time of earthquake in UTC/GMT: 26/04/25 / 2025-04-26 14:17:01 / April 26, 2025 @ 2:17 pm. The earthquake occurred at a depth of 18 km (11 miles) below the earth’s surface.

Event epicenter was 78 km (49 miles) from San Juan (c. 418 100 pop), 81 km (51 miles) from Levittown (c. 29 800 pop), 81 km (51 miles) from Cataño (c. 28 100 pop), 83 km (51 miles) from Dorado (c. 13 100 pop), 83 km (52 miles) from Ingenio (c. 5 700 pop), 83 km (52 miles) from Loíza (c. 4 300 pop). Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Loíza, Ingenio, Dorado (min 5000 pop).

There are an estimated 130,000 minor quakes in the world each year. In the past 24 hours, there have been eight, in the last 10 days twelve, in the past 30 days twenty-eight and in the last 365 days three hundred and seventy-two earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

Questions or comments?

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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 78 km N of San Juan, Puerto Rico.

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Parameter	Value	Description
Magnitude	3.51 mb	The magnitude for the event.
Longitude	-66.0293° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	19.1681° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	18 km	Depth of the event in kilometers.
Place	78 km N of San Juan, 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	2025-04-26 14:17:01	Time when the event occurred. UTC/GMT
Updated	2025-04-26 14:42:45	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	190	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	,us,pr,	A comma-separated list of network contributors.
Number of Stations Used	23	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.853	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	214	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	pr2025116003	Id of event.
Event Code	2025116003	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us7000pv8i,pr2025116003,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.51 mag strikes near San Juan in Puerto Rico

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