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Light earthquake, 4.1 mag strikes near San Antonio in Puerto Rico

Posted by admin on October 4, 2019 0 Comments

Earthquake location 19.0368S, -67.264WA light earthquake with magnitude 4.1 (ml/mb) was reported 62 kilometers (39 miles) from San Antonio in Puerto Rico on Friday. The 4.1-magnitude earthquake was detected at 03:47:18 / 3:47 am (local time epicenter). Id of earthquake: us70005qlb. Event ids that are associated: us70005qlb. Exact location of earthquake, longitude -67.264 West, latitude 19.0368 North, depth = 26.83 km. Global time and date of event 04/10/19 / 2019-10-04 07:47:18 / October 4, 2019 @ 7:47 am UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 26.83 km (17 miles).

Country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Arecibo, Añasco, San Sebastián (min 5000 pop). Epicenter of the event was 85 km (53 miles) from Arecibo (c. 49 300 pop), 69 km (43 miles) from Aguadilla (c. 16 100 pop), 65 km (40 miles) from Isabela (c. 12 500 pop), 83 km (52 miles) from San Sebastián (c. 11 600 pop), 85 km (53 miles) from Añasco (c. 6 100 pop), 77 km (48 miles) from Hatillo (c. 5 600 pop).

In the past 24 hours, there have been twelve, in the last 10 days two hundred and thirteen, in the past 30 days two hundred and sixty-nine and in the last 365 days six hundred and thirty-one earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light earthquakes in the world each year.

Did you feel the quake?

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: 62 km NNW of San Antonio, Puerto Rico.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -67.264° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.0368° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 26.83 km Depth of the event in kilometers.
Place 62km NNW of San Antonio, 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 2019-10-04 07:47:18 Time when the event occurred. UTC/GMT
Updated 2019-10-04 08:00:04 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 259 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,us, A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.823 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.77 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 94 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us70005qlb Id of event.
Event Code 70005qlb An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us70005qlb, A comma-separated list of event ids that are associated to an event.

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