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Minor earthquake, 3.11 mag strikes near Toa Alta in Puerto Rico


Earthquake location 18.377666666667S, -66.247833333333WA minor earthquake magnitude 3.11 (ml/mb) has struck on Sunday, 1 kilometers (1 miles) from Toa Alta in Puerto Rico. The epicenter was at a depth of 64.74 km (40 miles). Exact location, longitude -66.247833333333° West, latitude 18.377666666667° North, depth = 64.74 km. The temblor was reported at 00:14:16 / 12:14 am (local time epicenter). Global time and date of event 09/02/25 / 2025-02-09 00:14:16 / February 9, 2025 @ 12:14 am UTC/GMT. All ids that are associated to the event: pr71472443. Unique identifier: pr71472443.

Nearest cities/city/villages to epicentrum/hypocenter was Maricao, Las Marías, San Sebastián (min 5000 pop). The epicenter was 18 km (11 miles) from San Juan (c. 418 100 pop), 10 km (6 miles) from Bayamón (c. 203 500 pop), 31 km (19 miles) from Carolina (c. 170 400 pop), 56 km (35 miles) from Ponce (c. 152 600 pop), 26 km (16 miles) from Caguas (c. 86 800 pop). Close country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected).

Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days ten, in the past 30 days thirty-three and in the last 365 days three hundred and thirty-seven earthquakes of magnitude 3.0 or greater that was reported nearby. There are an estimated 130,000 minor quakes in the world each year.

Did you feel the quake?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking 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: 1 km S of Toa Alta, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.11 mb The magnitude for the event.
Longitude -66.247833333333° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.377666666667° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 64.74 km Depth of the event in kilometers.
Place 1 km S of Toa Alta, 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 2025-02-09 00:14:16 Time when the event occurred. UTC/GMT
Updated 2025-02-09 01:59:08 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 29 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.124 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.15 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 150 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 pr71472443 Id of event.
Event Code 71472443 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr71472443, A comma-separated list of event ids that are associated to an event.

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