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Light earthquake: M4 quake has struck near Amarillo in Texas


Earthquake location 35.3608S, -101.7933WA light earthquake magnitude 4 (ml/mb) has struck on Saturday, 15 kilometers (9 miles) from Amarillo in Texas. The epicenter was at a depth of 5.34 km (3 miles). Global time and date of event 20/10/18 / 2018-10-20 13:04:30 / October 20, 2018 @ 1:04 pm UTC/GMT. Event id: us1000heyv. Ids that are associated to the earthquake: us1000heyv. Exact location, longitude -101.7933° West, latitude 35.3608° North, depth = 5.34 km. The temblor was picked up at 07:04:30 / 7:04 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Earthquake epicenter was 16 km (10 miles) from Amarillo (c. 190 700 pop), 78 km (48 miles) from Pampa (c. 18 000 pop), 82 km (51 miles) from Hereford (c. 15 400 pop), 58 km (36 miles) from Dumas (c. 14 700 pop), 44 km (27 miles) from Canyon (c. 13 300 pop), 49 km (31 miles) from Borger (c. 13 300 pop). Nearby country/countries that might be effected, United States (c. 310 233 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Hereford, Pampa, Dumas (min 5000 pop).

There are an estimated 13,000 light earthquakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. 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 one earthquakes of magnitude 3.0 or greater that has struck near.

Did you feel it?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city 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: 15 km NNE of Amarillo, Texas.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -101.7933° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 35.3608° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 5.34 km Depth of the event in kilometers.
Place 15km NNE of Amarillo, Texas Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-10-20 13:04:30 Time when the event occurred. UTC/GMT
Updated 2018-10-20 13:25:58 Time when the event was most recently updated. UTC/GMT
Timezone offset -360 Timezone offset from UTC in minutes at the event epicenter.
Felt 64 The total number of felt reports
CDI 4 The maximum reported intensity for the event.
MMI 4.56 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 272 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 0.484 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.32 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 55 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mwr The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us1000heyv Id of event.
Event Code 1000heyv An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000heyv, A comma-separated list of event ids that are associated to an event.

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