A landform class assigned to the whole 250 m mesh and used to estimate AVS30. The name alone does not determine safety, and it is model data rather than a borehole survey at the station.
Muroran City earthquake and Shindo history in 2023
室蘭市
This annual view includes only earthquakes from 2023 for which stations associated with Muroran City recorded Shindo.
Data period: 1 January–31 December 2023Data period: 1 January–31 December 2023
In 2023, stations associated with Muroran City reported local Shindo for 1 earthquakes. The highest local level recorded that year was Shindo 4.
Observed events12023
Highest local Shindo42023
Data period: 1 January–31 December 2023 · 1 observed earthquakes
2023 · Shindo 3+ · Clear filtersObservation history · 2023
This history counts earthquakes observed at stations in the place, not earthquakes whose epicentre lies inside its boundary. Counts can change as stations are updated and older or corrected observations are added.
First observation: Feb 17, 2015
All yearsObserved events by year
Choose a year to update the event history and local Shindo distribution.
2023
All ShindoShindo observed in this place
The highest reading from stations in this place, not the maximum Shindo of the whole event.
Data period: 1 January–31 December 2023
Observation history · 2023
1 observed earthquakes
Ground & J-SHIS
The context below uses the place's full available history and reference models; it is not part of the 2023 statistics.
Local seismic profile
Where the shaking usually comes from
Source regions of earthquakes observed here, ordered by the number of reports.
5−
Central and eastern Iburi Region, Hokkaido胆振地方中東部
574
Off the east Coast of Aomori Prefecture青森県東方沖
454
Off the Coast of Urakawa浦河沖
363
Southern Tokachi Region, Hokkaido十勝地方南部
143
Off the Coast of Iwate Prefecture岩手県沖
112
Eastern Hidaka Region, Hokkaido日高地方東部
7Reference model · not a forecast J-SHIS (NIED) · 250 m · 6340377813
J-SHIS / NIEDGround conditions near an observation station
J-SHIS data for the 250 m mesh containing 室蘭市山手町.
How to read these values
The average speed of an S-wave through the upper 30 metres. A lower value generally indicates softer material that can amplify shaking more. J-SHIS uses this value to estimate the amplification shown to the right. It is not predicted Shindo.
For the same incoming wave, local ground conditions may make peak-motion velocity at the surface about 11% lower than at engineering bedrock (Vs = 400 m/s). This value describes motion velocity—it does not multiply magnitude or forecast ground acceleration.
Ground conditions can change over short distances. These values do not rate the whole place or the safety of a building, and they cannot predict an earthquake. Source: J-SHIS (NIED), V4 model; processed for presentation by JISHINDESU.
Local seismic profile
Nearby places
Municipalities nearest to the representative station position.
Understand local Shindo in context
Guides to this place’s history, seismic intensity and notification tools.
8 min readJapan’s Shindo Scale: Earthquake Intensity Levels 0–7
Learn what Japan’s Shindo earthquake intensity scale measures, what levels 0, 5 Lower, 5 Upper and 7 mean, and why Shindo is different from magnitude.
Read guide →10 min readHow to use the JISHINDESU interactive mapA guide to the redesigned map panel: adding and switching places, ten years of history, filters, local Shindo readings, sharing and notifications.
Read guide →6 min readAre earthquakes becoming more frequent in Japan?How to compare earthquake counts fairly—and why a few active days do not prove a lasting increase.
Read guide →4 min readAway from home? Monitor earthquakes in your Japanese townUse home as the reference point and receive notifications without an account when a station within the selected radius reports your chosen Shindo level.
Read guide →