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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.6 mag strikes near Iwaki in Japan


Earthquake location 36.5547S, 142.1138WA light earthquake magnitude 4.6 (ml/mb) strikes 122 km ESE of Iwaki, Japan (76 miles) on Tuesday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude 142.1138 East, latitude 36.5547 North, depth = 24.3 km. The epicenter of the earthquake was roughly 24.3 km (15 miles) below the earth’s surface. The temblor was picked up at 01:06:19 / 1:06 am (local time epicenter). Event id: us1000elap. Ids that are associated to the earthquake: us1000elap. Exact time and date of event in UTC/GMT: 04/06/18 / 2018-06-04 16:06:19 / June 4, 2018 @ 4:06 pm.

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

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. 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: 122 km ESE of Iwaki, Japan.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude 142.1138° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.5547° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 24.3 km Depth of the event in kilometers.
Place 122km ESE of Iwaki, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-06-04 16:06:19 Time when the event occurred. UTC/GMT
Updated 2018-06-11 15:33:07 Time when the event was most recently updated. UTC/GMT
Timezone offset 540 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 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 1.684 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.46 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 138 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 us1000elap Id of event.
Event Code 1000elap An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000elap, A comma-separated list of event ids that are associated to an event.

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