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Japan · Ibaraki Prefecture

M5.8 Earthquake near Toride, Ibaraki Prefecture (Japan)

UTC time: 2026-08-22 17:00:39 UTC Local time: —
Earthquake newsQuakeMap24
Archive record · original publication time was not recorded Content updated:

Automatically generated from measurement data by QuakeMap24. Values may change after further analysis.

Map

M5.8 Earthquake near Toride, Ibaraki Prefecture (Japan) · 2026-08-22 — Map showing the location of the epicenter
M5.8 Earthquake near Toride, Ibaraki Prefecture (Japan) · 2026-08-22 — Map showing the location of the epicenter

About this earthquake

A magnitude M5.8 earthquake was recorded near Toride, Ibaraki Prefecture (Japan) on August 22, 2026 at 17:00 UTC. The hypocenter lay relatively close to the surface at around 61 km, increasing how strongly it was felt. Earthquakes of this magnitude can damage poorly built structures.

The data is provided by USGS and cross-checked across seismological networks.

Details

ID
9e27e65eec89dc517df091f023fd82df84e7d55d
Magnitude
M5.8
Depth
61.0 km
UTC time
2026-08-22 17:00:39 UTC
Local time
—
Country
Japan
State
Ibaraki Prefecture
City
Toride
Source
usgs
Coordinates
35.93750, 140.07780
Temperature
23.3°C

Depth profile

Depth profile Depth: 61 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 61 km
Shallow
61 km
61 km — deeper than the regional average (33.1 km)
Regional average: 33.1 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Felt reports

119felt reports at EMSC / LastQuake

Voluntary reports of feeling this earthquake. The count is not an intensity measurement and is not added to USGS DYFI reports.

Data updated: Aug 23, 2026, 6:06 PM UTC · Last checked: Sep 20, 2026, 2:22 PM UTC

Source: EMSC / LastQuake

Estimated impact

Green No or minimal impact expected.
Estimated population exposed
IV 41'387'472
V 758'772
140 Felt reports · max reported intensity 5.7

Ground shaking

V
Moderate · Intensity (MMI) V
Felt by all, slight damage possible.

Tectonic context

Located on the Okhotsk Plate.
Near the boundary Okhotsk ↔ Philippine Sea · about 128 km away

Nearby population centers

Distances are straight-line distances from the epicenter. Population data: GeoNames.

PlaceDistanceDirectionPopulation
Fujishiro4.2 kmSE33'148
Toride4.2 kmS104'524
Funabashi27.5 kmS644'668

GeoNames · CC BY 4.0

Volcanoes nearby

  • Akagisan
    Distance: 105 km ·Stratovolcano ·Elevation: 1'828 m ·Japan
  • Nantaisan
    Distance: 106 km ·Stratovolcano ·Elevation: 2'486 m ·Last eruption: -9540 ·Japan
  • Takaharayama
    Distance: 110 km ·Stratovolcano ·Elevation: 1'795 m ·Last eruption: -4570 ·Japan
  • Omanago Group
    Distance: 111 km ·Lava dome(s) ·Elevation: 2'341 m ·Last eruption: -3050 ·Japan
  • Nikko-Shiranesan
    Distance: 115 km ·Shield ·Elevation: 2'578 m ·Last eruption: 1952 ·Japan
  • Hakoneyama
    Distance: 124 km ·Complex ·Elevation: 1'438 m ·Last eruption: 2015 ·Japan

Radius · 100 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Narita International AirportJapan · NRT · RJAA
    33.7 kmStraight-line distance
  • Ibaraki AirportJapan · IBR · RJAH
    40.6 kmStraight-line distance
  • Tokyo Haneda International AirportJapan · HND · RJTT
    50.5 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-20

Nuclear power plants

  • Tokai nuclear power plantJapanUnder construction · Permanently shut downReactor units at site: 2
    71.5 kmStraight-line distance
  • Japan Power Demonstration Reactor nuclear power plantJapanPermanently shut downReactor units at site: 1Approximate location
    74.7 kmStraight-line distance

Source: Global Energy Monitor · Global Nuclear Power Tracker · Dataset date: 2026-08

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

Subsequent earthquakes nearby

Events recorded after this earthquake within 150 km. They are not automatically classified as aftershocks.

First 6 hours0
First 24 hours0
First 72 hours0
Strongest subsequent eventM5.1
M3.42026-08-25 23:33:30 UTC24.1 kmBando M3.22026-08-29 09:48:30 UTC127.7 kmKatashina M3.32026-08-29 14:55:30 UTC58.1 kmChoshi M5.12026-08-29 15:17:02 UTC110.8 kmNear East Coast of Honshu, Japan M3.32026-08-31 09:49:30 UTC132.4 kmShirakawa M3.72026-09-05 18:00:30 UTC90.0 kmNEAR EAST COAST OF HONSHU, JAPAN M3.22026-09-06 10:28:30 UTC38.2 kmKatori M3.22026-09-10 09:55:30 UTC132.8 kmHinoemata M3.32026-09-12 06:56:30 UTC84.4 kmKatsuura M3.22026-09-12 07:49:30 UTC84.4 kmKatsuura M5.02026-09-16 15:07:35 UTC26.2 kmKasumigaura M3.52026-09-16 18:40:30 UTC74.2 kmKamisu

Comparison of seismic sources

7 sources currently report magnitudes from M5.7 to M6.0.

Measurements can differ because agencies use different networks and calculation methods. Values may be revised.

SourceMagnitudeDepthPosition difference
SERBIA_RSZM5.810.0 km9.5 km
RESIFM5.810.0 km11.5 km
EMSCM5.737.0 km15.5 km
SCEDCM5.861.0 km0.0 km
USGSM5.861.0 km0.0 km
GFZM6.076.0 km6.7 km
INGVM5.777.7 km11.6 km

Japan

Context for this earthquake

20 Sep 2025 – 20 Sep 2026 · M ≥ 3.0 · 953 Catalogue entries

Of 952 other entries for this area and period, 6 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#2
Earlier events M≥4134
Earlier events M≥535
Compared since2025-01-04

The QuakeMap24 comparison dataset begins on 2024-03-23. Earlier earthquakes may not be included.

Strongest earlier events

M5.92026-06-26 03:46:36 UTC83.0 kmChoshi M5.82026-06-26 03:46:37 UTC42.3 kmSammu M5.82026-06-26 03:46:36 UTC51.7 kmYokoshibahikari M5.72026-06-26 13:29:02 UTC119.5 kmTsuru M5.72026-06-26 13:28:56 UTC110.1 kmDoshi

Historic earthquake map · Japan

Open history map
Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · Japan

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

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