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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag strikes near Rumoi in Japan

Earthquake location 43.8998S, 141.8311WA light earthquake magnitude 4.1 (ml/mb) has struck on Saturday, 15 kilometers (9 miles) from Rumoi in Japan. The earthquake was roughly at a depth of 14 km (9 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.1-magnitude earthquake was detected at 06:39:41 / 6:39 am (local time epicenter). Exact location, longitude 141.8311° East, latitude 43.8998° North, depth = 14 km. Global date and time of event UTC/GMT: 30/06/17 / 2017-06-30 21:39:41 / June 30, 2017 @ 9:39 pm. Id of earthquake: us100097n1. Event ids that are associated: us100097n1.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Ebetsu, Ishikari, Tōbetsu. Nearby country/countries, Japan (c. 127 288 000 pop) (That might be effected). The epicenter was 45 km (28 miles) from Asahikawa (c. 356 600 pop), 91 km (56 miles) from Ebetsu (c. 134 000 pop), 78 km (48 miles) from Iwamizawa (c. 85 100 pop), 83 km (51 miles) from Ishikari (c. 57 300 pop), 39 km (24 miles) from Takikawa (c. 45 100 pop), 64 km (40 miles) from Bibai (c. 29 000 pop).

Each year there are an estimated 13,000 light earthquakes in the world. 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 one and in the last 365 days nine earthquakes of magnitude 3.0 or greater that has struck near.

Did you feel anything?

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. 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: 15 km ESE of Rumoi, Japan.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 141.8311° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 43.8998° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 14 km Depth of the event in kilometers.
Place 15km ESE of Rumoi, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-06-30 21:39:41 Time when the event occurred. UTC/GMT
Updated 2017-07-08 21:52:52 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 259 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 0.591 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.94 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 86 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 us100097n1 Id of event.
Event Code 100097n1 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us100097n1, A comma-separated list of event ids that are associated to an event.

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