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Light earthquake 4.2 mag, 0 km SSW of Magas Arriba, Puerto Rico


Earthquake location 18.0103S, -66.7708WA light earthquake magnitude 4.2 (ml/mb) strikes 0 kilometers (0 miles) from Magas Arriba in Puerto Rico on Tuesday. Exact time and date of event in UTC/GMT: 07/01/20 / 2020-01-07 15:55:11 / January 7, 2020 @ 3:55 pm. The earthquake was roughly at a depth of 8 km (5 miles). Exact location of event, depth 8 km, -66.7708° West, 18.0103° North. The 4.2-magnitude earthquake was detected at 11:55:11 / 11:55 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: pr2020007018. Event ids that are associated: pt20007029, pr2020007018.

Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Earthquake epicenter was 87 km (54 miles) from San Juan (c. 418 100 pop), 78 km (48 miles) from Bayamón (c. 203 500 pop), 17 km (10 miles) from Ponce (c. 152 600 pop), 80 km (50 miles) from Caguas (c. 86 800 pop), 80 km (50 miles) from Guaynabo (c. 81 400 pop), 44 km (28 miles) from Mayagüez (c. 78 600 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Juncos, Maunabo, Trujillo Alto.

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

Did you feel the quake?

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: 0 km SSW of Magas Arriba, Puerto Rico. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -66.7708° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.0103° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 8 km Depth of the event in kilometers.
Place 0km SSW of Magas Arriba, 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 2020-01-07 15:55:11 Time when the event occurred. UTC/GMT
Updated 2020-01-07 16:24:17 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt 15 The total number of felt reports
CDI 4.6 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 278 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 ,pt,pr, A comma-separated list of network contributors.
Number of Stations Used 8 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.1677 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 184 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 pr2020007018 Id of event.
Event Code 2020007018 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pt20007029,pr2020007018, A comma-separated list of event ids that are associated to an event.

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