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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake 3.1 mag, 18 km WSW of Helena, Oklahoma


Earthquake location 36.496S, -98.4713WA minor earthquake with magnitude 3.1 (ml/mb) was reported 18 kilometers (11 miles) from Helena in Oklahoma on Monday. Exact time and date of earthquake 30/10/17 / 2017-10-30 14:49:49 / October 30, 2017 @ 2:49 pm UTC/GMT. The temblor was detected at 08:49:49 / 8:49 am (local time epicenter). Exact location, longitude -98.4713° West, latitude 36.496° North, depth = 7.59 km. The epicenter of the earthquake was roughly 7.59 km (5 miles) below the earth’s surface. Id of earthquake: us1000ayix. Event ids that are associated: us1000ayix.

Nearest cities/city/towns to hypocenter/epicentrum was Watonga, Enid (min 5000 pop). Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected). Epicenter of the event was 54 km (34 miles) from Enid (c. 49 400 pop), 73 km (45 miles) from Watonga (c. 5 100 pop).

In the past 24 hours, there have been one, in the last 10 days four, in the past 30 days nine and in the last 365 days one hundred and fourty-nine earthquakes of magnitude 3.0 or greater that have been detected nearby. There are an estimated 130,000 minor earthquakes in the world each year. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

Questions or comments?

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: 18 km WSW of Helena, Oklahoma.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -98.4713° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.496° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 7.59 km Depth of the event in kilometers.
Place 18km WSW of Helena, Oklahoma Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-10-30 14:49:49 Time when the event occurred. UTC/GMT
Updated 2017-10-30 15:15:04 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 148 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 0.219 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.13 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 49 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb_lg The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us1000ayix Id of event.
Event Code 1000ayix An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000ayix, A comma-separated list of event ids that are associated to an event.

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