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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.3 mag has occurred near Arriaga in Mexico


Earthquake location 16.2856S, -93.7426WA light earthquake magnitude 4.3 (ml/mb) strikes 17 kilometers (11 miles) from Arriaga in Mexico on Monday. The epicenter of the earthquake was roughly 113.54 km (71 miles) below the earth’s surface. Date and time of earthquake in UTC/GMT: 31/12/18 / 2018-12-31 17:34:53 / December 31, 2018 @ 5:34 pm. Unique identifier: us2000izw8. Ids that are associated to the event: us2000izw8. Exact location of earthquake, -93.7426° West, 16.2856° North, depth 113.54 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.3-magnitude earthquake was detected at 11:34:53 / 11:34 am (local time epicenter).

The epicenter was 85 km (53 miles) from Tuxtla Gutiérrez (c. 481 100 pop), 44 km (28 miles) from Cintalapa de Figueroa (c. 33 500 pop), 22 km (14 miles) from Tonalá (c. 32 900 pop), 91 km (57 miles) from Chiapa de Corzo (c. 32 200 pop), 66 km (41 miles) from Ocozocoautla de Espinosa (c. 31 600 pop), 18 km (11 miles) from Arriaga (c. 22 800 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Chiapa de Corzo, Pijijiapan, San Fernando. Close country/countries, Mexico (c. 112 469 000 pop) (That might be effected).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been three, in the last 10 days three, in the past 30 days six and in the last 365 days twenty-seven earthquakes of magnitude 3.0 or greater that have been detected nearby. There are an estimated 13,000 light quakes in the world each year.

Did you feel anything?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 17 km ENE of Arriaga, Mexico. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude -93.7426° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 16.2856° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 113.54 km Depth of the event in kilometers.
Place 17km ENE of Arriaga, 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 17:34:53 Time when the event occurred. UTC/GMT
Updated 2019-01-25 00:17:56 Time when the event was most recently updated. UTC/GMT
Timezone offset -360 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 284 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 0.766 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.66 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 137 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 us2000izw8 Id of event.
Event Code 2000izw8 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000izw8, A comma-separated list of event ids that are associated to an event.

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