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Minor earthquake, 3.1 mag has occurred near El Negro in Puerto Rico



Earthquake location 17.9171S, -65.6765WA minor earthquake magnitude 3.1 (ml/mb) has occurred on Saturday, 22 kilometers (14 miles) from El Negro in Puerto Rico. The 3.1-magnitude earthquake was detected at 08:41:31 / 8:41 am (local time epicenter). Exact time and date of event in UTC/GMT: 05/08/17 / 2017-08-05 12:41:31 / August 5, 2017 @ 12:41 pm. The epicenter was at a depth of 13 km (8 miles). Event id: pr2017217003. Ids that are associated to the earthquake: pr2017217003. Exact location of event, depth 13 km, -65.6765° West, 17.9171° North.

Nearest cities/city/villages to epicentrum/hypocenter was Toa Alta, Levittown, Candelaria Arenas (min 5000 pop). Earthquake epicenter was 76 km (47 miles) from San Juan (c. 418 100 pop), 74 km (46 miles) from Bayamón (c. 203 500 pop), 59 km (37 miles) from Carolina (c. 170 400 pop), 53 km (33 miles) from Caguas (c. 86 800 pop), 67 km (42 miles) from Guaynabo (c. 81 400 pop). Close country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected).

In the past 24 hours, there have been one, in the last 10 days seven, in the past 30 days eleven and in the last 365 days one hundred and fourteen earthquakes of magnitude 3.0 or greater that have been detected 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.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city 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: 22 km SE of El Negro, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -65.6765° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.9171° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 13 km Depth of the event in kilometers.
Place 22km SE of El Negro, 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 2017-08-05 12:41:31 Time when the event occurred. UTC/GMT
Updated 2017-08-05 13:13:30 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 148 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 16 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.2186 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 213 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 pr2017217003 Id of event.
Event Code 2017217003 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2017217003, A comma-separated list of event ids that are associated to an event.

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