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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag was detected near Iwaki in Japan

Earthquake location 37.1582S, 141.2053WA light earthquake magnitude 4.5 (ml/mb) has struck on Saturday, 31 kilometers (19 miles) from Iwaki in Japan. The earthquake occurred at a depth of 50.05 km (31 miles) below the earth’s surface. The 4.5-magnitude earthquake has occurred at 15:43:34 / 3:43 pm (local time epicenter). Global time and date of event 05/05/18 / 2018-05-05 06:43:34 / May 5, 2018 @ 6:43 am UTC/GMT. Exact location of event, longitude 141.2053 East, latitude 37.1582 North, depth = 50.05 km. Id of earthquake: us1000e2ud. Event ids that are associated: us1000e2ud. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

The epicenter was 31 km (19 miles) from Iwaki (c. 357 300 pop), 78 km (48 miles) from Kōriyama (c. 340 600 pop), 93 km (58 miles) from Fukushima-shi (c. 294 200 pop), 79 km (49 miles) from Hitachi (c. 186 300 pop), 74 km (46 miles) from Sukagawa (c. 68 800 pop), 58 km (36 miles) from Kitaibaraki (c. 50 800 pop), 83 km (52 miles) from Nihommatsu (c. 36 300 pop). Close country/countries that might be effected, Japan (c. 127 288 000 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Funaishikawa, Yanagawamachi-saiwaichō, Hobaramachi.

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 five and in the last 365 days seventy-four 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 the quake?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 31 km ENE of Iwaki, Japan. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 141.2053° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 37.1582° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 50.05 km Depth of the event in kilometers.
Place 31km ENE 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 2018-05-05 06:43:34 Time when the event occurred. UTC/GMT
Updated 2018-05-17 07:02:51 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 312 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 0.782 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.96 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 160 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 us1000e2ud Id of event.
Event Code 1000e2ud An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000e2ud, A comma-separated list of event ids that are associated to an event.

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