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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.5 mag, 72 km SSE of Onagawa Chō, Japan


Earthquake location 37.8761S, 141.8539WA light earthquake with magnitude 4.5 (ml/mb) was detected on Sunday, 72 kilometers (45 miles) from Onagawa Chō in Japan. The 4.5-magnitude earthquake was detected at 17:03:55 / 5:03 pm (local time epicenter). The earthquake was roughly at a depth of 65.987 km (41 miles). Exact location, longitude 141.8539° East, latitude 37.8761° North, depth = 65.987 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global date and time of event UTC/GMT: 27/07/25 / 2025-07-27 17:03:55 / July 27, 2025 @ 5:03 pm. All ids that are associated to the event: us6000qvi6. Unique identifier: us6000qvi6.

Earthquake epicenter was 96 km (60 miles) from Sendai (c. 1 063 100 pop), 96 km (60 miles) from Sendai-shi (c. 1 063 100 pop), 77 km (48 miles) from Ishinomaki (c. 117 200 pop), 87 km (54 miles) from Shiogama (c. 59 500 pop), 91 km (56 miles) from Iwanuma (c. 42 400 pop), 90 km (56 miles) from Watari (c. 36 300 pop), 92 km (57 miles) from Rifu (c. 35 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Sendai-shi, Sendai, Marumori (min 5000 pop). Close country/countries, Japan (c. 127 288 000 pop) (That might be effected).

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 fifty earthquakes of magnitude 3.0 or greater that has occurred nearby. 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.

Questions or comments?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 72 km SSE of Onagawa Chō, Japan. This information 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 141.8539° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 37.8761° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 65.987 km Depth of the event in kilometers.
Place 72 km SSE of Onagawa Chō, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-07-27 17:03:55 Time when the event occurred. UTC/GMT
Updated 2025-07-27 18:11:32 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 60 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 2.973 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.16 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 122 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 us6000qvi6 Id of event.
Event Code 6000qvi6 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000qvi6, A comma-separated list of event ids that are associated to an event.

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