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Minor earthquake, 3.18 mag strikes near Rincon in Puerto Rico


Earthquake location 18.3533S, -67.778WA minor earthquake magnitude 3.18 (ml/mb) has struck on Monday, 55 kilometers (34 miles) from Rincon in Puerto Rico. Exact location of earthquake, -67.778° West, 18.3533° North, depth 118 km. Event ids that are associated to the earthquake: pr2019365053. Id of event: pr2019365053. The earthquake was roughly at a depth of 118 km (73 miles). Global time and date of event 31/12/19 / 2019-12-31 04:35:54 / December 31, 2019 @ 4:35 am UTC/GMT. The 3.18-magnitude earthquake has occurred at 23:35:54 / 11:35 pm (local time epicenter).

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Cabo Rojo, Hormigueros, Punta Cana. Country/countries that might be effected, Dominican Republic (c. 9 824 000 pop), Puerto Rico (c. 3 917 000 pop). Earthquake epicenter was 71 km (44 miles) from Punta Cana (c. 100 000 pop), 69 km (43 miles) from Mayagüez (c. 78 600 pop), 66 km (41 miles) from Aguadilla (c. 16 100 pop), 73 km (45 miles) from Hormigueros (c. 11 900 pop), 73 km (45 miles) from Cabo Rojo (c. 10 800 pop).

Every year there are an estimated 130,000 minor earthquakes in the world. In the past 24 hours, there have been twelve, in the last 10 days eighty-seven, in the past 30 days one hundred and seventy-seven and in the last 365 days eight hundred and thirty-four earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 2.5 to 3.2 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. 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: 55 km W of Rincon, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.18 mb The magnitude for the event.
Longitude -67.778° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.3533° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 118 km Depth of the event in kilometers.
Place 55km W of Rincon, 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 2019-12-31 04:35:54 Time when the event occurred. UTC/GMT
Updated 2020-01-01 03:49:06 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 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 156 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 4 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.7146 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.29 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 332 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 pr2019365053 Id of event.
Event Code 2019365053 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2019365053, A comma-separated list of event ids that are associated to an event.

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