Minor earthquake: M3.98 quake has struck near Adjuntas in Puerto Rico

A minor earthquake magnitude 3.98 (ml/mb) has occurred on Tuesday, 7 kilometers (4 miles) from Adjuntas in Puerto Rico. Global time and date of event 07/04/20 / 2020-04-07 13:00:35 / April 7, 2020 @ 1:00 pm UTC/GMT. The temblor was reported at 09:00:35 / 9:00 am (local time epicenter). The earthquake occurred at a depth of 6 km (4 miles) below the earth’s surface. Exact location of earthquake, longitude -66.7846 West, latitude 18.0723 North, depth = 6 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event ids that are associated to the earthquake: us70008qki, pr2020098013. Id of event: pr2020098013.

Closest city/cities/towns to epicentrum/hypocenter was Gurabo, San Lorenzo, Trujillo Alto (min 5000 pop). Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Epicenter of the event was 84 km (52 miles) from San Juan (c. 418 100 pop), 76 km (47 miles) from Bayamón (c. 203 500 pop), 19 km (12 miles) from Ponce (c. 152 600 pop), 80 km (50 miles) from Caguas (c. 86 800 pop), 78 km (48 miles) from Guaynabo (c. 81 400 pop), 40 km (25 miles) from Mayagüez (c. 78 600 pop).

Each year there are an estimated 130,000 minor earthquakes in the world. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been nine, in the last 10 days ninety-three, in the past 30 days two hundred and sixty-one and in the last 365 days one thousand, eight hundred and thirty-four earthquakes of magnitude 3.0 or greater that has struck near.

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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, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 7 km ESE of Adjuntas, Puerto Rico. This information comes from the USGS Earthquake Notification Service.

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Parameter	Value	Description
Magnitude	3.98 mb	The magnitude for the event.
Longitude	-66.7846° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	18.0723° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	6 km	Depth of the event in kilometers.
Place	7km ESE of Adjuntas, 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	2020-04-07 13:00:35	Time when the event occurred. UTC/GMT
Updated	2020-04-07 13:42:26	Time when the event was most recently updated. UTC/GMT
Timezone offset	-240	Timezone offset from UTC in minutes at the event epicenter.
Felt	29	The total number of felt reports
CDI	5.2	The maximum reported intensity for the event.
MMI	3.693	The maximum estimated instrumental intensity for the event.
Alert Level	green	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	pr	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,us,pr,	A comma-separated list of network contributors.
Number of Stations Used	19	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.1356	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.12 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	57	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	pr2020098013	Id of event.
Event Code	2020098013	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us70008qki,pr2020098013,	A comma-separated list of event ids that are associated to an event.

Parameter

Value

Description

Magnitude

3.98 mb

The magnitude for the event.

Longitude

-66.7846° West

Decimal degrees longitude. Negative values for western longitudes.

Latitude

18.0723° North

Decimal degrees latitude. Negative values for southern latitudes.

Depth

6 km

Depth of the event in kilometers.

Place

7km ESE of Adjuntas, 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

2020-04-07 13:00:35

Time when the event occurred. UTC/GMT

Updated

2020-04-07 13:42:26

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

5.2

The maximum reported intensity for the event.

MMI

3.693

The maximum estimated instrumental intensity for the event.

Alert Level

green

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

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

The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.

Sources

,us,pr,

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

0.1356

Horizontal distance from the epicenter to the nearest station (in degrees).

Root Mean Square

0.12 sec

The root-mean-square (RMS) travel time residual, in sec, using all weights.

Azimuthal Gap

The largest azimuthal gap between azimuthally adjacent stations (in degrees).

Magnitude Type

The method or algorithm used to calculate the preferred magnitude for the event.

Event Type

earthquake

Type of seismic event.

Event ID

pr2020098013

Id of event.

Event Code

2020098013

An identifying code assigned by, and unique from, the corresponding source for the event.

Event IDS

,us70008qki,pr2020098013,

A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M3.98 quake has struck near Adjuntas in Puerto Rico

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