An earthquake occurred at about 01:04 Japan time on 8 November 2026, with its epicentre in western Shizuoka Prefecture. Japan’s Meteorological Agency (JMA) put the magnitude at 5.7 and the depth at about 40 kilometres. A JMA bulletin issued at 01:12 lists the strongest reported shaking, intensity 5 Upper, at the Midorimachi observation point in Chita City, Aichi Prefecture. Western Shizuoka identifies the epicentral region. Chita identifies the location of the strongest reading in that bulletin. JMA earthquake parameters and JMA bulletin archived by Ibaraki Prefecture
The station table gives a more precise answer than a prefecture-wide headline. It lists some observation points in eastern and western Aichi at 5 Lower, several Nagoya stations at 4, and a station in Mikkabi, in Hamamatsu’s Hamana Ward, at 5 Lower. Readers checking on a particular place can match the municipality and station against that table. For current conditions or instructions, consult current official local notices. The 01:12 report documents what instruments had recorded by that bulletin. Station list in the JMA bulletin and JMA earthquake information
What the bulletin says about Aichi and western Shizuoka
The regional portion places western Aichi at 5 Upper. It places eastern Aichi, southern Nagano, eastern Mino in Gifu and western Shizuoka at 5 Lower. These lines organise the observations geographically. When discussing a specific neighbourhood, use the station table below them. It lists the named points at which readings were recorded. It also shows why a single headline for Aichi cannot describe every part of the prefecture. Regional and local readings in the 01:12 bulletin
In western Aichi the 5 Lower group includes observation points at Oiwakechō in Seto, Tōyōchō in Handa and Kotobukichō in Kariya. The same group contains three points in Toyota, at Kosakahonmachi, Kosakachō and Chōkōjichō. Other Toyota points appear under intensity 4, including Ōbora and Ōnuma. If two people in Toyota saw different numbers in their news feeds, look at the named points first. Both readings can belong to the same earthquake. Local observations archived by Ibaraki
For Nagoya, Hiyorichō in Chikusa Ward and the prefectural government station in Naka Ward both appear in the intensity 4 group. In Shizuoka, the Mikkabi station in Hamamatsu’s Hamana Ward appears in the 5 Lower group, while Hosoechō in the same ward appears at 4. A ward name is therefore a useful starting point for searching, with the station name providing the exact reference. If a place name has several English spellings, search the Japanese spelling shown by the bulletin and compare the whole row. JMA bulletin with Japanese station names
The report uses separate headings for the regional overview and station observations. If you share a number, include the level, the place and the report time. For example, the 01:12 bulletin supports “5 Upper at the Chita Midorimachi observation point.” It also supports “5 Lower at the Mikkabi station in Hamamatsu.” A local observation can be precise without claiming that everyone in the surrounding area experienced the same shaking. JMA’s guide to earthquake information products
Read the early warning and the observation as two different records
JMA’s archived early-warning page for this event gives a detection time of 01:04:41.8 and a warning issue time of 01:04:49.5. The agency records a 7.7-second interval between those points. The issue time describes the agency’s warning record. How much time a particular person had before stronger shaking depends on where they were and how the warning reached them. JMA’s archive includes a map and timing material for interpreting that distinction. JMA early-warning archive for the event
At issuance, the warning estimated shaking around 5 Lower for western Aichi and around 4 for western Shizuoka and eastern Aichi. The subsequent 01:12 bulletin contains observations, including the 5 Upper reading at Chita. The forecast and the measured reading answer different questions. If you are comparing screenshots, note whether the original label says predicted or observed. An early warning can be useful before the station readings are assembled, while the bulletin gives the later record of shaking at named locations. JMA warning detail and 01:12 observations
The warning archive also shows why a number taken from a cropped image can be misleading. Its overview identifies preliminary source parameters and displays a magnitude of 6.0 and depth of 50 kilometres. The issuance row displays a separate estimate, while JMA’s event solution gives magnitude 5.7 and approximately 40 kilometres. If you are reconstructing the initial warning, cite the warning archive and label the field. If you want the earthquake parameters reported by the agency in the event solution, use the figures in that solution. JMA warning archive and JMA event solution
What the long-period measurements add
JMA issued a separate observation page for long-period ground motion for this earthquake. It lists class 1 in southern Nagano and in eastern and western Aichi. The station table has columns for both conventional seismic intensity and long-period ground-motion class. At Hiyorichō in Nagoya, it lists intensity 4 alongside long-period class 1. At Toyota’s Kosakachō station, it lists 5 Lower alongside class 1. The two columns describe different characteristics of shaking. JMA’s long-period observations for 8 November
The same table shows the distinction in another way. The Mikkabi point is listed at 5 Lower on the seismic intensity scale and class 0 in the separate long-period column. A reader copying numbers out of that table should keep both column labels. A class number by itself is easy to mistake for an intensity rating, especially when the same place appears in two tables. The long-period page is a supplement to the local intensity bulletin for readers checking the type of measurements available for this event. JMA’s observation-point table
For context, JMA’s English intensity guide describes possible experiences associated with each level. At 5 Upper, it describes difficulty moving without support. Its detailed tables distinguish possible effects by building characteristics. These descriptions are a way to interpret a scale. To establish actual impacts at a school, railway or building, use a dated statement from the relevant authority or operator. A reading at a station and a report about a building are separate pieces of evidence. JMA’s intensity scale tables
Which date to search outside Japan
The agency’s reports use the local Japanese date. Japan is three hours ahead of Bangladesh, so 01:04 on 8 November in Japan corresponds to 22:04 on 7 November in Dhaka and 16:04 UTC on 7 November. When looking for the Japanese bulletin, search for 8 November at 01:04 even if a message in Bangladesh was stamped late on 7 November. Searching with the epicentral region and local date helps distinguish the event from reports about other earthquakes that were already circulating. JMA’s time and epicentral location
For someone comparing this bulletin with reports about a different earthquake, JMA’s long-period history lists multiple recent entries in order. It shows the western Shizuoka event at 01:04 and a separate offshore Ibaraki event at 20:07 on 7 November, both in Japanese local time. A previous TrendWindow article covers the 29 October Chiba earthquake. The Chiba observations belong to that earlier event. For the 8 November question, use the western Shizuoka entry and its own station list. JMA’s dated observation history
What the Japan search snapshot showed
In a Japan snapshot of Google Trends Trending Now at 20:30 UTC on 7 November, the Japanese query “地震,” meaning earthquake, was listed first with 500K+ and marked Active. The view used the past 24 hours, all categories and all trends, sorted by descending search volume. Related queries included variations of “Aichi earthquake.” The snapshot was taken on 8 November in Japan and Bangladesh. It documents the list at that moment. Google Trends for Japan
A search for “Aichi earthquake” makes sense for someone trying to identify shaking they felt or check on a place in Aichi. The relevant primary report names western Shizuoka as the epicentral region and lists observation points across prefectural lines. Using both terms can help find the same event in two different source formats. In a dated bulletin, search the Japanese region name 静岡県西部 for the source area and the name of the Aichi municipality for its readings. The search volume describes the query in that Google view. The official sources supply the event measurements. JMA bulletin with regional and station tables
How to share a clear update about one place
Begin with the city or district someone is asking about. Then attach the date and source to the reading. For a person in Chita, the named Midorimachi point and the 01:12 report identify exactly what was recorded. For someone in Nagoya, give a station in their ward if it appears, or link the table and let them choose the appropriate point. For a person who asks whether local services are running, refer them to the service’s latest notice for the specific route or facility. The earthquake bulletin is a record of the event. A live service notice answers a different question. JMA station bulletin
If your update also includes the event-wide measurements, label those in a separate sentence. A short message could say that JMA recorded a magnitude 5.7 earthquake centred in western Shizuoka and that the Chita Midorimachi station registered 5 Upper. It is also worth including the Japanese local time when a group includes people overseas. The reader can then find the report directly and see whether a newer official bulletin adds information about their area. JMA event solution and JMA’s current earthquake information
What a nearby high-rise reader can learn from the table
JMA explains that the long-period classification is calculated from ground-motion observations and designed to help describe potential shaking in high-rise buildings. Some buildings can respond more strongly when the period of the ground motion is close to a period at which the structure naturally sways. A reader in an upper-floor apartment may therefore have a different experience from someone at ground level nearby. That experience can help explain why someone searched for the earthquake even when they live outside the area named in the epicentre line. JMA’s explanation of long-period ground motion
For this event, an office worker comparing Nagoya’s Chikusa Ward and a colleague’s location in Hamamatsu would see different values in the two columns of the event table. The Chikusa station is listed at intensity 4 and long-period class 1, and the Mikkabi station at 5 Lower and class 0. JMA explains that class 0 in this table means the observation fell below the threshold for class 1. The two stations illustrate why you cannot order the observations on both scales using either column alone. Event observation table and JMA’s explanation of the classes
How to compare updates from the same night
Before comparing two earthquake notices, match the origin time and epicentral region. The time printed at the top of a notice may be its publication time. In the Ibaraki archive, the top of the entry says 01:12 while the text below identifies the earthquake at about 01:04. A short summary that calls this the 01:12 earthquake could lead a reader to look for the wrong event. Keep the occurrence time with the epicentral name and put the bulletin time beside the source link. Ibaraki’s archive of the JMA bulletin
If the two notices refer to the same earthquake, check the headings before comparing the figures. A warning estimate, a station reading and a source parameter can be published at different points in the same sequence. For this earthquake, the event solution, warning archive and local bulletin provide enough detail to reconstruct that order without guessing from the order of search results. JMA warning history and JMA’s guide to earthquake information
The official record to keep
The 01:04 western Shizuoka event and the strongest observation in Chita describe the same earthquake from two perspectives. The 01:12 bulletin gives the station readings. The warning archive records the earlier forecast and issuance time. JMA’s long-period table adds a separate measurement for named stations. Keeping the links with their labels gives readers in Aichi and neighbouring prefectures a way to verify the particular detail they need. JMA bulletin, warning archive and long-period observations
Sources consulted 8 November 2026, Bangladesh time. Event measurements are attributed to JMA. The original illustration is conceptual and does not depict the event, an official instrument display or an observed waveform.