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Minor earthquake: M3.1 quake has struck near San Juan in Puerto Rico

Earthquake location 19.0923S, -65.9576WA minor earthquake magnitude 3.1 (ml/mb) strikes 71 kilometers (44 miles) from San Juan in Puerto Rico on Monday. The temblor was picked up at 15:40:21 / 3:40 pm (local time epicenter). Unique identifier: us7000ams6. Ids that are associated to the event: us7000ams6. Date and time of earthquake in UTC/GMT: 13/07/20 / 2020-07-13 15:40:21 / July 13, 2020 @ 3:40 pm. Exact location of event, longitude -65.9576 West, latitude 19.0923 North, depth = 35 km. The earthquake was roughly at a depth of 35 km (22 miles).

Nearby country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Río Grande, San Antonio, Campanilla. The epicenter was 71 km (44 miles) from San Juan (c. 418 100 pop), 80 km (50 miles) from Bayamón (c. 203 500 pop), 79 km (49 miles) from Carolina (c. 170 400 pop), 75 km (47 miles) from Levittown (c. 29 800 pop), 74 km (46 miles) from Cataño (c. 28 100 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 eight, in the past 30 days twelve and in the last 365 days two hundred and five 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.

How would you describe the shaking?

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. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 71 km NNE of San Juan, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -65.9576° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.0923° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 71 km NNE of San Juan, 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 2020-07-13 15:40:21 Time when the event occurred. UTC/GMT
Updated 2020-07-13 15:49:17 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 148 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 0.86 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.26 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 269 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us7000ams6 Id of event.
Event Code 7000ams6 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000ams6, A comma-separated list of event ids that are associated to an event.

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