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Minor earthquake, 3.18 mag strikes near Yauco in Puerto Rico


Earthquake location 18.022S, -66.8388WA minor earthquake magnitude 3.18 (ml/mb) has occurred on Friday, 1 kilometers (1 miles) from Yauco in Puerto Rico. All ids that are associated to the event: pr2021001020. Unique identifier: pr2021001020. Global date and time of event UTC/GMT: 01/01/21 / 2021-01-01 16:51:46 / January 1, 2021 @ 4:51 pm. The epicenter of the earthquake was roughly 15 km (9 miles) below the earth’s surface. The 3.18-magnitude earthquake has occurred at 16:51:46 / 4:51 pm (local time epicenter). Exact location of earthquake, longitude -66.8388 West, latitude 18.022 North, depth = 15 km.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Ingenio, Candelaria Arenas, Candelaria. The epicenter was 24 km (15 miles) from Ponce (c. 152 600 pop), 38 km (23 miles) from Mayagüez (c. 78 600 pop), 52 km (32 miles) from Arecibo (c. 49 300 pop), 67 km (42 miles) from Vega Baja (c. 29 300 pop), 57 km (36 miles) from Barceloneta (c. 22 300 pop). Country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

In the past 24 hours, there have been ten, in the last 10 days seventy-seven, in the past 30 days one hundred and ten and in the last 365 days two thousand, eight hundred and sixty-seven earthquakes of magnitude 3.0 or greater that has struck near. Each year there are an estimated 130,000 minor quakes in the world. 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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 1 km SE of Yauco, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.18 mb The magnitude for the event.
Longitude -66.8388° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.022° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 15 km Depth of the event in kilometers.
Place 1 km SE of Yauco, 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 2021-01-01 16:51:46 Time when the event occurred. UTC/GMT
Updated 2021-01-01 17:11:05 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 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 21 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.0619 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.18 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 115 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 pr2021001020 Id of event.
Event Code 2021001020 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2021001020, A comma-separated list of event ids that are associated to an event.

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