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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.21 mag was detected near San Antonio in Puerto Rico


Earthquake location 18.6265S, -67.140333333333WA minor earthquake with magnitude 3.21 (ml/mb) was reported 15 kilometers (9 miles) from San Antonio in Puerto Rico on Thursday. Global time and date of event 07/08/25 / 2025-08-07 05:43:52 / August 7, 2025 @ 5:43 am UTC/GMT. The epicenter was at a depth of 71.95 km (45 miles). Exact location of earthquake, -67.140333333333° West, 18.6265° North, depth 71.95 km. The temblor was picked up at 05:43:52 / 5:43 am (local time epicenter). Unique identifier: pr71491883. Ids that are associated to the event: pr71491883.

Earthquake epicenter was 47 km (29 miles) from Mayagüez (c. 78 600 pop), 48 km (30 miles) from Arecibo (c. 49 300 pop), 66 km (41 miles) from Barceloneta (c. 22 300 pop), 73 km (45 miles) from Yauco (c. 20 300 pop), 68 km (42 miles) from Adjuntas (c. 19 500 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Ciales, Peñuelas, Guayanilla. Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

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

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, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 15 km NNW of San Antonio, Puerto Rico. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.21 mb The magnitude for the event.
Longitude -67.140333333333° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.6265° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 71.95 km Depth of the event in kilometers.
Place 15 km NNW of San Antonio, 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 2025-08-07 05:43:52 Time when the event occurred. UTC/GMT
Updated 2025-08-07 06:04:24 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 159 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 21 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.1606 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.2 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 199 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 pr71491883 Id of event.
Event Code 71491883 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr71491883, A comma-separated list of event ids that are associated to an event.

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