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Minor earthquake: M2.91 quake has struck near Pole Ojea in Puerto Rico

Posted by admin on December 20, 2017 0 Comments

Earthquake location 17.9031S, -67.4765WA minor earthquake magnitude 2.91 (ml/mb) has struck on Tuesday, 31 kilometers (19 miles) from Pole Ojea in Puerto Rico. Global time and date of event 20/12/17 / 2017-12-20 00:27:01 / December 20, 2017 @ 12:27 am UTC/GMT. Id of earthquake: pr2017354003. Event ids that are associated: pr2017354003. Exact location of event, longitude -67.4765 West, latitude 17.9031 North, depth = 7 km. The temblor was picked up at 20:27:01 / 8:27 pm (local time epicenter). The earthquake occurred at a depth of 7 km (4 miles).

Epicenter of the event was 49 km (30 miles) from Mayagüez (c. 78 600 pop), 68 km (42 miles) from Yauco (c. 20 300 pop), 68 km (42 miles) from Aguadilla (c. 16 100 pop), 50 km (31 miles) from San Germán (c. 12 100 pop), 45 km (28 miles) from Hormigueros (c. 11 900 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Lares, Guayanilla, San Sebastián. Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

There are an estimated 130,000 minor earthquakes in the world each year. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days fourteen and in the last 365 days one hundred and fourty-seven earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Did you feel anything?

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: 31 km WSW of Pole Ojea, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.91 mb The magnitude for the event.
Longitude -67.4765° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.9031° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 7 km Depth of the event in kilometers.
Place 31km WSW of Pole Ojea, 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 2017-12-20 00:27:01 Time when the event occurred. UTC/GMT
Updated 2017-12-20 05:24:10 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 130 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 9 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.3812 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.16 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 278 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 pr2017354003 Id of event.
Event Code 2017354003 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2017354003, A comma-separated list of event ids that are associated to an event.

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