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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake: M3.57 quake has struck near Luquillo in Puerto Rico

Earthquake location 19.0075S, -65.4261WA minor earthquake with magnitude 3.57 (ml/mb) was reported 76 kilometers (47 miles) from Luquillo in Puerto Rico on Sunday. The 3.57-magnitude earthquake was detected at 18:51:09 / 6:51 pm (local time epicenter). Unique identifier: pr2021031014. Ids that are associated to the event: pr2021031014. Exact time and date of earthquake 31/01/21 / 2021-01-31 18:51:09 / January 31, 2021 @ 6:51 pm UTC/GMT. Exact location of event, depth 51 km, -65.4261° West, 19.0075° North. The earthquake was roughly at a depth of 51 km (32 miles).

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was San Isidro, Río Grande, Loíza. Epicenter of the earthquake was 79 km (49 miles) from Fajardo (c. 34 100 pop), 82 km (51 miles) from Río Grande (c. 13 500 pop), 77 km (48 miles) from Luquillo (c. 8 300 pop), 84 km (52 miles) from San Isidro (c. 8 100 pop), 80 km (50 miles) from Loíza (c. 4 300 pop), 79 km (49 miles) from Culebra (c. 1 500 pop). Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

In the past 24 hours, there have been five, in the last 10 days thirteen, in the past 30 days fifty-five and in the last 365 days two hundred and thirty-three earthquakes of magnitude 3.0 or greater that have been detected in the same area. 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.

Questions or comments?

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 76 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 3.57 mb The magnitude for the event.
Longitude -65.4261° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.0075° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 51 km Depth of the event in kilometers.
Place 76 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 2021-01-31 18:51:09 Time when the event occurred. UTC/GMT
Updated 2021-01-31 19:24:52 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 196 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 13 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.919 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.48 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 305 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 pr2021031014 Id of event.
Event Code 2021031014 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2021031014, A comma-separated list of event ids that are associated to an event.

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