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Minor earthquake: M3.11 quake has struck near Brenas in Puerto Rico


Earthquake location 18.8325S, -66.390333333333WA minor earthquake magnitude 3.11 (ml/mb) strikes 40 kilometers (25 miles) from Brenas in Puerto Rico on Monday. Exact time and date of earthquake 14/07/25 / 2025-07-14 01:12:23 / July 14, 2025 @ 1:12 am UTC/GMT. Exact location of event, longitude -66.390333333333 West, latitude 18.8325 North, depth = 52.26 km. The epicenter was at a depth of 52.26 km (32 miles). Unique identifier: pr71489148. Ids that are associated to the event: pr71489148. The temblor was reported at 01:12:23 / 1:12 am (local time epicenter).

Earthquake epicenter was 51 km (31 miles) from San Juan (c. 418 100 pop), 54 km (34 miles) from Bayamón (c. 203 500 pop), 68 km (42 miles) from Carolina (c. 170 400 pop), 76 km (47 miles) from Caguas (c. 86 800 pop), 60 km (38 miles) from Guaynabo (c. 81 400 pop). Nearest cities/city/villages to epicentrum/hypocenter was Villalba, Lares, Aibonito (min 5000 pop). Nearby country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected).

In the past 24 hours, there have been two, in the last 10 days seven, in the past 30 days fourty-four and in the last 365 days four hundred and twenty-six earthquakes of magnitude 3.0 or greater that has occurred nearby. Each year there are an estimated 130,000 minor earthquakes in the world. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage.

How would you describe the shaking?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage 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: 40 km N of Brenas, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.11 mb The magnitude for the event.
Longitude -66.390333333333° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.8325° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 52.26 km Depth of the event in kilometers.
Place 40 km N of Brenas, 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 2025-07-14 01:12:23 Time when the event occurred. UTC/GMT
Updated 2025-07-14 01:59:35 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 149 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 18 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.3773 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.14 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 249 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 pr71489148 Id of event.
Event Code 71489148 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr71489148, A comma-separated list of event ids that are associated to an event.

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