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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake 3.3 mag, 17 km W of Helena, Oklahoma


Earthquake location 36.5235S, -98.4662WA minor earthquake with magnitude 3.3 (ml/mb) was reported 17 kilometers (11 miles) from Helena in Oklahoma on Saturday. The earthquake was roughly at a depth of 5 km (3 miles). Exact time and date of earthquake 04/07/15 / 2015-07-04 21:00:28 / July 4, 2015 @ 9:00 pm UTC/GMT. The temblor was reported at 16:00:28 / 4:00 pm (local time epicenter). Exact location of earthquake, longitude -98.4662 West, latitude 36.5235 North, depth = 5 km. Unique identifier: us10002nfr. Ids that are associated to the event: us10002nfr.

Close country/countries that might be effected, United States (c. 310 233 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Watonga, Enid (min 5000 pop). Event epicenter was 54 km (34 miles) from Enid (c. 49 400 pop), 76 km (47 miles) from Watonga (c. 5 100 pop).

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. There are an estimated 130,000 minor earthquakes in the world each year. In the past 24 hours, there have been three, in the last 10 days seventeen, in the past 30 days fourty-five and in the last 365 days four hundred and ninety-six earthquakes of magnitude 3.0 or greater that has struck near.

How would you describe the shaking?

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, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 17 km W of Helena, Oklahoma. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.3 mb The magnitude for the event.
Longitude -98.4662° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.5235° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 5 km Depth of the event in kilometers.
Place 17km W 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 2015-07-04 21:00:28 Time when the event occurred. UTC/GMT
Updated 2015-07-04 21:10:25 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 Timezone offset from UTC in minutes at the event epicenter.
Felt 2 The total number of felt reports
CDI 2.2 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 168 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 0.347 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.39 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 159 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 us10002nfr Id of event.
Event Code 10002nfr An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10002nfr, A comma-separated list of event ids that are associated to an event.

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