Minor earthquake 3.41 mag, 58 km N of Isabela, Puerto Rico

A minor earthquake magnitude 3.41 (ml/mb) strikes 58 kilometers (36 miles) from Isabela in Puerto Rico on Tuesday. Date and time of earthquake in UTC/GMT: 20/05/25 / 2025-05-20 02:11:25 / May 20, 2025 @ 2:11 am. Exact location of earthquake, longitude -67.060333333333 West, latitude 19.023666666667 North, depth = 48.63 km. The temblor was picked up at 02:11:25 / 2:11 am (local time epicenter). Id of earthquake: pr71482893. Event ids that are associated: pr71482893. The earthquake occurred at a depth of 48.63 km (30 miles).

Country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Epicenter of the earthquake was 71 km (44 miles) from Arecibo (c. 49 300 pop), 67 km (42 miles) from Aguadilla (c. 16 100 pop), 58 km (36 miles) from Isabela (c. 12 500 pop), 77 km (48 miles) from San Sebastián (c. 11 600 pop), 83 km (52 miles) from Lares (c. 7 200 pop). Nearest cities/city/villages to epicentrum/hypocenter was Lares, Añasco, Rincón (min 5000 pop).

In the past 24 hours, there have been one, in the last 10 days twenty-one, in the past 30 days seventy-seven and in the last 365 days four hundred and twenty-eight earthquakes of magnitude 3.0 or greater that has struck near. Each year there are an estimated 130,000 minor quakes in the world. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

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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: 58 km N of Isabela, Puerto Rico.

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Parameter	Value	Description
Magnitude	3.41 mb	The magnitude for the event.
Longitude	-67.060333333333° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	19.023666666667° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	48.63 km	Depth of the event in kilometers.
Place	58 km N of Isabela, 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	2025-05-20 02:11:25	Time when the event occurred. UTC/GMT
Updated	2025-05-20 02:25:18	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	179	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	8	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.5553	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.28 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	329	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	pr71482893	Id of event.
Event Code	71482893	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,pr71482893,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake 3.41 mag, 58 km N of Isabela, Puerto Rico

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