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Minor earthquake, 3.14 mag was detected near Hatillo in Puerto Rico


Earthquake location 18.52S, -66.8115WA minor earthquake with magnitude 3.14 (ml/mb) was detected on Wednesday, 4 kilometers (2 miles) from Hatillo in Puerto Rico. Global date and time of event UTC/GMT: 06/12/17 / 2017-12-06 09:28:46 / December 6, 2017 @ 9:28 am. All ids that are associated to the event: pr2017340001. Unique identifier: pr2017340001. The temblor was detected at 05:28:46 / 5:28 am (local time epicenter). Exact location, longitude -66.8115° West, latitude 18.52° North, depth = 93 km. The epicenter was at a depth of 93 km (58 miles).

Nearest cities/city/villages to epicentrum/hypocenter was Aguas Buenas, Cidra, Guaynabo (min 5000 pop). Event epicenter was 75 km (46 miles) from San Juan (c. 418 100 pop), 70 km (44 miles) from Bayamón (c. 203 500 pop), 60 km (37 miles) from Ponce (c. 152 600 pop), 76 km (47 miles) from Guaynabo (c. 81 400 pop), 50 km (31 miles) from Mayagüez (c. 78 600 pop). Country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

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

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 4 km NNE of Hatillo, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.14 mb The magnitude for the event.
Longitude -66.8115° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.52° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 93 km Depth of the event in kilometers.
Place 4km NNE of Hatillo, 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 2017-12-06 09:28:46 Time when the event occurred. UTC/GMT
Updated 2017-12-06 09:47:37 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 152 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 0.0865 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 223 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 pr2017340001 Id of event.
Event Code 2017340001 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2017340001, A comma-separated list of event ids that are associated to an event.

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