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Minor earthquake: M2.85 quake has struck near Guanica in Puerto Rico



Earthquake location 17.8723S, -66.9535WA minor earthquake magnitude 2.85 (ml/mb) has struck on Friday, 12 kilometers (7 miles) from Guanica in Puerto Rico. The 2.85-magnitude earthquake has occurred at 15:06:53 / 3:06 pm (local time epicenter). All ids that are associated to the event: pr2017230010. Unique identifier: pr2017230010. Global time and date of event 18/08/17 / 2017-08-18 19:06:53 / August 18, 2017 @ 7:06 pm UTC/GMT. Exact location, longitude -66.9535° West, latitude 17.8723° North, depth = 5 km. The earthquake occurred at a depth of 5 km (3 miles) below the earth’s surface.

Epicenter of the event was 39 km (24 miles) from Ponce (c. 152 600 pop), 42 km (26 miles) from Mayagüez (c. 78 600 pop), 71 km (44 miles) from Arecibo (c. 49 300 pop), 21 km (13 miles) from Yauco (c. 20 300 pop), 41 km (25 miles) from Adjuntas (c. 19 500 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Barranquitas, Morovis, Coco. Country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

Every year there are an estimated 1,300,000 minor earthquakes in the world. In the past 24 hours, there have been 0, in the last 10 days four, in the past 30 days nine and in the last 365 days one hundred and two earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage.

Did you feel anything?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 12 km SSW of Guanica, Puerto Rico. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.85 mb The magnitude for the event.
Longitude -66.9535° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.8723° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 5 km Depth of the event in kilometers.
Place 12km SSW 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 2017-08-18 19:06:53 Time when the event occurred. UTC/GMT
Updated 2017-08-18 19:32:10 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 125 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 2 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.4187 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 229 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 pr2017230010 Id of event.
Event Code 2017230010 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2017230010, A comma-separated list of event ids that are associated to an event.

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