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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake 3.6 mag, 81 km NNE of Luquillo, Puerto Rico

Posted by admin on December 4, 2025 0 Comments

Earthquake location 19.047S, -65.3986WA minor earthquake with magnitude 3.6 (ml/mb) was reported 81 kilometers (50 miles) from Luquillo in Puerto Rico on Thursday. Exact time and date of earthquake 04/12/25 / 2025-12-04 18:56:31 / December 4, 2025 @ 6:56 pm UTC/GMT. Event id: us7000rflr. Ids that are associated to the earthquake: us7000rflr. The earthquake occurred at a depth of 35 km (22 miles) below the earth’s surface. The 3.6-magnitude earthquake has occurred at 18:56:31 / 6:56 pm (local time epicenter). Exact location of event, longitude -65.3986 West, latitude 19.047 North, depth = 35 km.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Loíza, Fajardo, Culebra. Epicenter of the event was 85 km (53 miles) from Fajardo (c. 34 100 pop), 82 km (51 miles) from Luquillo (c. 8 300 pop), 85 km (53 miles) from Loíza (c. 4 300 pop), 83 km (52 miles) from Culebra (c. 1 500 pop). Nearby country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected).

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

Did you feel anything?

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: 81 km NNE of Luquillo, Puerto Rico. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.6 mb The magnitude for the event.
Longitude -65.3986° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.047° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 81 km NNE of Luquillo, 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 2025-12-04 18:56:31 Time when the event occurred. UTC/GMT
Updated 2025-12-04 19:04:52 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 199 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,us, A comma-separated list of network contributors.
Number of Stations Used 16 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.808 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.39 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 219 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us7000rflr Id of event.
Event Code 7000rflr An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000rflr, A comma-separated list of event ids that are associated to an event.

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