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Light earthquake, 4.6 mag strikes near Chontalpa in Mexico


Earthquake location 17.3147S, -93.8877WA light earthquake magnitude 4.6 (ml/mb) has struck on Monday, 58 kilometers (36 miles) from Chontalpa in Mexico. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 04:13:30 / 4:13 am (local time epicenter). Id of earthquake: us2000izep. Event ids that are associated: us2000izep. Exact time and date of event in UTC/GMT: 31/12/18 / 2018-12-31 10:13:30 / December 31, 2018 @ 10:13 am. Exact location, longitude -93.8877° West, latitude 17.3147° North, depth = 167.06 km. The epicenter of the earthquake was roughly 167.06 km (104 miles) below the earth’s surface.

Nearest cities/city/towns to hypocenter/epicentrum was Agua Dulce, Cárdenas, Tapilula (min 5000 pop). Earthquake epicenter was 94 km (58 miles) from Cárdenas (c. 85 400 pop), 72 km (45 miles) from Las Choapas (c. 40 300 pop), 96 km (59 miles) from Agua Dulce (c. 36 100 pop), 72 km (45 miles) from Cintalapa de Figueroa (c. 33 500 pop), 82 km (51 miles) from Ocozocoautla de Espinosa (c. 31 600 pop), 78 km (49 miles) from Huimanguillo (c. 26 600 pop), 87 km (54 miles) from Berriozábal (c. 21 000 pop). Country/countries that might be effected, Mexico (c. 112 469 000 pop).

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days one and in the last 365 days eight earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Each year there are an estimated 13,000 light earthquakes in the world.

Did you feel anything?

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: 58 km SW of Chontalpa, Mexico.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude -93.8877° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.3147° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 167.06 km Depth of the event in kilometers.
Place 58km SW of Chontalpa, Mexico Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-12-31 10:13:30 Time when the event occurred. UTC/GMT
Updated 2018-12-31 13:07:16 Time when the event was most recently updated. UTC/GMT
Timezone offset -360 Timezone offset from UTC in minutes at the event epicenter.
Felt 1 The total number of felt reports
CDI 3.8 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 326 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 1.966 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.81 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 114 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 us2000izep Id of event.
Event Code 2000izep An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000izep, A comma-separated list of event ids that are associated to an event.

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