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Minor earthquake, 3.17 mag has occurred near Brenas in Puerto Rico


Earthquake location 19.1373S, -66.343WA minor earthquake magnitude 3.17 (ml/mb) strikes 74 kilometers (46 miles) from Brenas in Puerto Rico on Sunday. Event id: pr2018273023. Ids that are associated to the earthquake: pr2018273023. The 3.17-magnitude earthquake has occurred at 17:40:16 / 5:40 pm (local time epicenter). Exact location of event, depth 60 km, -66.343° West, 19.1373° North. The earthquake was roughly at a depth of 60 km (37 miles). Global date and time of event UTC/GMT: 30/09/18 / 2018-09-30 21:40:16 / September 30, 2018 @ 9:40 pm.

Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Epicenter of the earthquake was 79 km (49 miles) from San Juan (c. 418 100 pop), 78 km (49 miles) from Levittown (c. 29 800 pop), 77 km (48 miles) from Vega Baja (c. 29 300 pop), 79 km (49 miles) from Barceloneta (c. 22 300 pop), 76 km (47 miles) from Dorado (c. 13 100 pop). Nearest cities/city/towns to hypocenter/epicentrum was Campanilla, Barceloneta, San Juan (min 5000 pop).

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

Did you feel the quake?

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: 74 km N of Brenas, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.17 mb The magnitude for the event.
Longitude -66.343° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.1373° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 60 km Depth of the event in kilometers.
Place 74km N of Brenas, 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 2018-09-30 21:40:16 Time when the event occurred. UTC/GMT
Updated 2018-10-01 01:02:20 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 155 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 3 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.8911 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.01 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 339 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 pr2018273023 Id of event.
Event Code 2018273023 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2018273023, A comma-separated list of event ids that are associated to an event.

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