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Minor earthquake: M2.84 quake has struck near Isabela in Puerto Rico


Earthquake location 18.8813S, -67.08WA minor earthquake magnitude 2.84 (ml/mb) strikes 42 kilometers (26 miles) from Isabela in Puerto Rico on Tuesday. Event ids that are associated to the earthquake: pr2019281031. Id of event: pr2019281031. Exact location of earthquake, -67.08° West, 18.8813° North, depth 11 km. Exact time and date of event in UTC/GMT: 08/10/19 / 2019-10-08 20:09:50 / October 8, 2019 @ 8:09 pm. The temblor was detected at 16:09:50 / 4:09 pm (local time epicenter). The epicenter of the earthquake was roughly 11 km (7 miles) below the earth’s surface.

Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Mayagüez, Barceloneta, Las Marías. Country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Event epicenter was 76 km (47 miles) from Mayagüez (c. 78 600 pop), 59 km (37 miles) from Arecibo (c. 49 300 pop), 74 km (46 miles) from Barceloneta (c. 22 300 pop), 51 km (32 miles) from Aguadilla (c. 16 100 pop), 43 km (27 miles) from Isabela (c. 12 500 pop).

In the past 24 hours, there have been twelve, in the last 10 days one hundred and twenty-two, in the past 30 days three hundred and four and in the last 365 days five hundred and fourty-nine earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. Each year there are an estimated 1,300,000 minor quakes in the world.

Questions or comments?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage 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: 42 km N of Isabela, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.84 mb The magnitude for the event.
Longitude -67.08° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.8813° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 11 km Depth of the event in kilometers.
Place 42km N of Isabela, 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 2019-10-08 20:09:50 Time when the event occurred. UTC/GMT
Updated 2019-10-08 23:53:21 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 124 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 4 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.6262 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.21 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 327 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 pr2019281031 Id of event.
Event Code 2019281031 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2019281031, A comma-separated list of event ids that are associated to an event.

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