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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4 quake has struck near Obihiro in Japan

Earthquake location 42.8463S, 143.2116WA light earthquake with magnitude 4 (ml/mb) was detected on Sunday, 7 kilometers (4 miles) from Obihiro in Japan. The epicenter of the earthquake was roughly 132.51 km (82 miles) below the earth’s surface. The temblor was detected at 18:38:36 / 6:38 pm (local time epicenter). Event id: us2000g428. Ids that are associated to the earthquake: us2000g428. Exact time and date of earthquake 08/07/18 / 2018-07-08 09:38:36 / July 8, 2018 @ 9:38 am UTC/GMT. Exact location of event, depth 132.51 km, 143.2116° East, 42.8463° North. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Close country/countries, Japan (c. 127 288 000 pop) (That might be effected). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Shizunai-furukawachō, Shimo-furano, Otofuke. The epicenter was 8 km (5 miles) from Obihiro (c. 173 900 pop), 16 km (10 miles) from Otofuke (c. 40 900 pop), 88 km (54 miles) from Shimo-furano (c. 25 900 pop), 90 km (56 miles) from Shizunai-furukawachō (c. 22 400 pop).

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 two and in the last 365 days nineteen earthquakes of magnitude 3.0 or greater that has occurred nearby. Every year there are an estimated 13,000 light earthquakes in the world.

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 7 km S of Obihiro, Japan.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude 143.2116° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 42.8463° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 132.51 km Depth of the event in kilometers.
Place 7km S of Obihiro, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-07-08 09:38:36 Time when the event occurred. UTC/GMT
Updated 2018-07-15 05:43:15 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 246 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 0.831 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.58 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 145 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 us2000g428 Id of event.
Event Code 2000g428 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000g428, A comma-separated list of event ids that are associated to an event.

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