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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake 3.42 mag, 79 km NNE of Luquillo, Puerto Rico


Earthquake location 19.0225S, -65.396833333333WA minor earthquake with magnitude 3.42 (ml/mb) was detected on Monday, 79 kilometers (49 miles) from Luquillo in Puerto Rico. Exact location of event, depth 49 km, -65.396833333333° West, 19.0225° North. Global date and time of event UTC/GMT: 04/08/25 / 2025-08-04 23:14:06 / August 4, 2025 @ 11:14 pm. The epicenter of the earthquake was roughly 49 km (30 miles) below the earth’s surface. The temblor was reported at 23:14:06 / 11:14 pm (local time epicenter). Event ids that are associated to the earthquake: pr71491533. Id of event: pr71491533.

Event epicenter was 82 km (51 miles) from Fajardo (c. 34 100 pop), 80 km (50 miles) from Luquillo (c. 8 300 pop), 83 km (52 miles) from Loíza (c. 4 300 pop), 81 km (50 miles) from Culebra (c. 1 500 pop). Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Loíza, Fajardo, Culebra.

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

How would you describe the shaking?

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: 79 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 3.42 mb The magnitude for the event.
Longitude -65.396833333333° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.0225° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 49 km Depth of the event in kilometers.
Place 79 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 2025-08-04 23:14:06 Time when the event occurred. UTC/GMT
Updated 2025-08-05 00:04:23 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 180 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 20 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.7864 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.24 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 237 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 pr71491533 Id of event.
Event Code 71491533 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr71491533, A comma-separated list of event ids that are associated to an event.

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