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Minor earthquake, 3.03 mag strikes near Guánica in Puerto Rico


Earthquake location 17.9355S, -66.9235WA minor earthquake magnitude 3.03 (ml/mb) has occurred on Thursday, 4 kilometers (2 miles) from Guánica in Puerto Rico. The temblor was reported at 19:37:27 / 7:37 pm (local time epicenter). Unique identifier: pr2020191011. Ids that are associated to the event: us7000akyq, pr2020191011. The earthquake occurred at a depth of 11 km (7 miles) below the earth’s surface. Exact location, longitude -66.9235° West, latitude 17.9355° North, depth = 11 km. Date and time of earthquake in UTC/GMT: 09/07/20 / 2020-07-09 19:37:27 / July 9, 2020 @ 7:37 pm.

Epicenter of the event was 34 km (21 miles) from Ponce (c. 152 600 pop), 37 km (23 miles) from Mayagüez (c. 78 600 pop), 64 km (40 miles) from Arecibo (c. 49 300 pop), 70 km (44 miles) from Barceloneta (c. 22 300 pop), 14 km (8 miles) from Yauco (c. 20 300 pop). Nearest cities/city/towns to hypocenter/epicentrum was Corozal, Aibonito, Manatí (min 5000 pop). Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

In the past 24 hours, there have been six, in the last 10 days one hundred and seven, in the past 30 days two hundred and sixty-eight and in the last 365 days two thousand, four hundred and twenty-eight earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage. There are an estimated 130,000 minor quakes in the world each year.

Did you feel it?

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. 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: 4 km SSW of Guánica, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.03 mb The magnitude for the event.
Longitude -66.9235° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.9355° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 11 km Depth of the event in kilometers.
Place 4 km SSW of Guánica, 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 2020-07-09 19:37:27 Time when the event occurred. UTC/GMT
Updated 2020-07-10 05:33:29 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt 1 The total number of felt reports
CDI 2 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 141 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 ,us,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 0.0594 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.22 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 208 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 pr2020191011 Id of event.
Event Code 2020191011 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000akyq,pr2020191011, A comma-separated list of event ids that are associated to an event.

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