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Minor earthquake: M3.11 quake has struck near Arecibo in Puerto Rico

Earthquake location 18.5393S, -66.7253WA minor earthquake magnitude 3.11 (ml/mb) strikes 7 kilometers (4 miles) from Arecibo in Puerto Rico on Sunday. Unique identifier: pr2020285005. Ids that are associated to the event: pr2020285005. The epicenter was at a depth of 114 km (71 miles). The temblor was reported at 03:06:32 / 3:06 am (local time epicenter). Exact location of event, depth 114 km, -66.7253° West, 18.5393° North. Global date and time of event UTC/GMT: 11/10/20 / 2020-10-11 03:06:32 / October 11, 2020 @ 3:06 am.

Event epicenter was 66 km (41 miles) from San Juan (c. 418 100 pop), 62 km (39 miles) from Bayamón (c. 203 500 pop), 60 km (37 miles) from Ponce (c. 152 600 pop), 79 km (49 miles) from Caguas (c. 86 800 pop), 68 km (42 miles) from Guaynabo (c. 81 400 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Caguas, Trujillo Alto, Salinas. Country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

In the past 24 hours, there have been eight, in the last 10 days thirty-three, in the past 30 days one hundred and sixteen and in the last 365 days three thousand, one hundred and ninety-nine earthquakes of magnitude 3.0 or greater that has occurred nearby. There are an estimated 130,000 minor quakes in the world each year. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage.

Did you feel it?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 7 km N of Arecibo, Puerto Rico. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.11 mb The magnitude for the event.
Longitude -66.7253° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.5393° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 114 km Depth of the event in kilometers.
Place 7 km N of Arecibo, 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 2020-10-11 03:06:32 Time when the event occurred. UTC/GMT
Updated 2020-10-11 07:20:40 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 149 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 15 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.1948 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 208 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 pr2020285005 Id of event.
Event Code 2020285005 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2020285005, A comma-separated list of event ids that are associated to an event.

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