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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.21 mag strikes near Sabana Hoyos in Puerto Rico


Earthquake location 18.4245S, -66.5965WA minor earthquake magnitude 3.21 (ml/mb) has occurred on Sunday, 2 kilometers (1 miles) from Sabana Hoyos in Puerto Rico. Date and time of earthquake in UTC/GMT: 29/06/25 / 2025-06-29 13:27:50 / June 29, 2025 @ 1:27 pm. Exact location of event, longitude -66.5965 West, latitude 18.4245 North, depth = 117.57 km. The earthquake was roughly at a depth of 117.57 km (73 miles). All ids that are associated to the event: pr71487538. Unique identifier: pr71487538. The temblor was detected at 13:27:50 / 1:27 pm (local time epicenter).

Epicenter of the event was 52 km (32 miles) from San Juan (c. 418 100 pop), 47 km (29 miles) from Bayamón (c. 203 500 pop), 68 km (42 miles) from Carolina (c. 170 400 pop), 46 km (29 miles) from Ponce (c. 152 600 pop), 62 km (38 miles) from Caguas (c. 86 800 pop). Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Patillas, Arroyo, Loíza (min 5000 pop).

In the past 24 hours, there have been four, in the last 10 days eighteen, in the past 30 days fourty-six and in the last 365 days four hundred and seventy-eight earthquakes of magnitude 3.0 or greater that have been detected nearby. 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.

Did you feel anything?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 2 km ESE of Sabana Hoyos, 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 -66.5965° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.4245° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 117.57 km Depth of the event in kilometers.
Place 2 km ESE of Sabana Hoyos, 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 2025-06-29 13:27:50 Time when the event occurred. UTC/GMT
Updated 2025-06-29 13:47:12 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 22 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.08235 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 134 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 pr71487538 Id of event.
Event Code 71487538 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr71487538, A comma-separated list of event ids that are associated to an event.

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