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Minor earthquake: M3 quake has struck near Guanica in Puerto Rico


Earthquake location 17.8665S, -66.867WA minor earthquake magnitude 3 (ml/mb) has struck on Tuesday, 12 kilometers (7 miles) from Guanica in Puerto Rico. Global date and time of event UTC/GMT: 28/01/20 / 2020-01-28 22:56:06 / January 28, 2020 @ 10:56 pm. The 3-magnitude earthquake was detected at 18:56:06 / 6:56 pm (local time epicenter). The earthquake occurred at a depth of 12 km (7 miles) below the earth’s surface. Exact location, longitude -66.867° West, latitude 17.8665° North, depth = 12 km. All ids that are associated to the event: pr2020028054. Unique identifier: pr2020028054.

Nearest cities/city/towns to hypocenter/epicentrum was Corozal, Comerío, Manatí (min 5000 pop). Earthquake epicenter was 31 km (19 miles) from Ponce (c. 152 600 pop), 47 km (29 miles) from Mayagüez (c. 78 600 pop), 69 km (43 miles) from Arecibo (c. 49 300 pop), 74 km (46 miles) from Barceloneta (c. 22 300 pop), 19 km (12 miles) from Yauco (c. 20 300 pop). Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

Every year there are an estimated 130,000 minor earthquakes in the world. In the past 24 hours, there have been thirty-nine, in the last 10 days two hundred and sixty-eight, in the past 30 days eight hundred and seventy-two and in the last 365 days nine hundred and fourty-three earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage.

How would you describe the shaking?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 12 km SSE of Guanica, Puerto Rico. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3 mb The magnitude for the event.
Longitude -66.867° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.8665° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 12 km Depth of the event in kilometers.
Place 12km SSE of Guanica, 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 2020-01-28 22:56:06 Time when the event occurred. UTC/GMT
Updated 2020-01-30 13:50:36 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 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 138 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 8 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.1093 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.13 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 248 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 pr2020028054 Id of event.
Event Code 2020028054 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2020028054, A comma-separated list of event ids that are associated to an event.

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