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.
Okinawa earthquake and Shindo history in 2018
沖縄県
This annual view includes only earthquakes from 2018 for which stations associated with Okinawa recorded Shindo.
Data period: 1 January–31 December 2018Data period: 1 January–31 December 2018
In 2018, stations associated with Okinawa reported local Shindo for 121 earthquakes. The highest local level recorded that year was Shindo 5−.
Observed events1212018
Highest local Shindo5−2018
How observations were spread across 2018
The largest number of observed earthquakes was in March: 42.
Observed earthquakes by month
- Jan1
- Feb4
- Mar42
- Apr8
- May8
- Jun12
- Jul5
- Aug6
- Sep12
- Oct6
- Nov10
- Dec7
If several earthquakes reached the same highest local Shindo, we show the most recent one. Monthly counts depend on station coverage and imported records; they do not establish a seasonal pattern or predict the next earthquake.
Data period: 1 January–31 December 2018 · 121 observed earthquakes
2018 · Clear filtersObservation history · 2018
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: Jan 12, 2015
All yearsObserved events by year
Choose a year to update the event history and local Shindo distribution.
2018
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 2018
Observation history · 2018
121 observed earthquakes
- 震度1Dec 30, 2018, 11:39 JSTAdjacent Sea of Miyakojima IslandShindo in this place: 1 · Event maximum Shindo: 1M3.650 km
- 震度2Dec 20, 2018, 14:16 JSTAdjacent Sea of Iriomotejima IslandShindo in this place: 2 · Event maximum Shindo: 2M4.530 km
- 震度1Dec 16, 2018, 06:21 JSTthe vicinity of TaiwanShindo in this place: 1 · Event maximum Shindo: 1M5.320 km
- 震度1Dec 15, 2018, 11:07 JSTAdjacent Sea of Okinawa Main IslandShindo in this place: 1 · Event maximum Shindo: 1M2.920 km
- 震度1Dec 13, 2018, 02:48 JSTAdjacent Sea of Miyakojima IslandShindo in this place: 1 · Event maximum Shindo: 1M3.420 km
- 震度1Dec 4, 2018, 02:58 JSTAdjacent Sea of Okinawa Main IslandShindo in this place: 1 · Event maximum Shindo: 1M3.230 km
- 震度1Dec 3, 2018, 20:27 JSTAdjacent Sea of Okinawa Main IslandShindo in this place: 1 · Event maximum Shindo: 1M2.220 km
- 震度1Nov 26, 2018, 00:52 JSTAdjacent Sea of Okinawa Main IslandShindo in this place: 1 · Event maximum Shindo: 1M3.620 km
Regional context
The context below uses the place's full available history and reference models; it is not part of the 2018 statistics.
Local seismic profile
Where the shaking usually comes from
Source regions of earthquakes observed here, ordered by the number of reports.
4
Adjacent Sea of Okinawa Main Island沖縄本島近海
2714
Adjacent Sea of Miyakojima Island宮古島近海
2265−
Adjacent Sea of Iriomotejima Island西表島付近
1663
Off the northwest Coast of Okinawa Main Island沖縄本島北西沖
1174
Adjacent Sea of Yonagunijima Island与那国島近海
924
the vicinity of Taiwan台湾付近
55Reference model · not a forecast J-SHIS (NIED) · 250 m · 3926369241
J-SHIS / NIEDGround conditions near an observation station
J-SHIS data for the 250 m mesh containing 久米島町山城.
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 12% 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
Municipalities in this prefecture
Municipalities with an observation history, ordered alphabetically. Counts depend on station coverage and the available data period; they are not a risk ranking.
Aguni Village粟国村
43 Observed eventsShindo 2
→Chatan Town北谷町
38 Observed eventsShindo 3
→Ginowan City宜野湾市
66 Observed eventsShindo 3
→Ginoza Village宜野座村
62 Observed eventsShindo 3
→Haebaru Town南風原町
34 Observed eventsShindo 3
→Higashi Village東村
44 Observed eventsShindo 3
→Ie Village伊江村
24 Observed eventsShindo 2
→Iheya Village伊平屋村
50 Observed eventsShindo 3
→Itoman City糸満市
31 Observed eventsShindo 3
→Izena Village伊是名村
26 Observed eventsShindo 3
→Kadena Town嘉手納町
29 Observed eventsShindo 2
→Kin Town金武町
31 Observed eventsShindo 3
→Kitadaito Village北大東村
16 Observed eventsShindo 2
→Kitanakagusuku Village北中城村
40 Observed eventsShindo 3
→Kumejima Town久米島町
166 Observed eventsShindo 3
→Kunigami Village国頭村
173 Observed eventsShindo 3
→Minamidaito Village南大東村
6 Observed eventsShindo 2
→Miyakojima City宮古島市
280 Observed eventsShindo 4
→Motobu Town本部町
90 Observed eventsShindo 3
→Nago City名護市
136 Observed eventsShindo 3
→Naha City那覇市
75 Observed eventsShindo 3
→Nakagusuku Village中城村
72 Observed eventsShindo 3
→Nakijin Village今帰仁村
86 Observed eventsShindo 3
→Nanjo City南城市
102 Observed eventsShindo 3
→Nishihara Town西原町
83 Observed eventsShindo 3
→Ogimi Village大宜味村
24 Observed eventsShindo 3
→Okinawa City沖縄市
84 Observed eventsShindo 3
→Onna Village恩納村
102 Observed eventsShindo 4
→Tarama Village多良間村
119 Observed eventsShindo 3
→Tokashiki Village渡嘉敷村
48 Observed eventsShindo 3
→Tomigusuku City豊見城市
11 Observed eventsShindo 2
→Tonaki Village渡名喜村
103 Observed eventsShindo 3
→Urasoe City浦添市
23 Observed eventsShindo 2
→Uruma Cityうるま市
97 Observed eventsShindo 3
→Yaese Town八重瀬町
58 Observed eventsShindo 3
→Yomitan Village読谷村
69 Observed eventsShindo 3
→Yonabaru Town与那原町
49 Observed eventsShindo 3
→Yonaguni Town与那国町
162 Observed eventsShindo 4
→Zamami Village座間味村
125 Observed eventsShindo 3
→Understand local Shindo in context
Guides to this place’s history, seismic intensity and notification tools.
8 min readJapan’s Shindo Scale Explained: What Levels 0–7 Mean
Shindo is Japan’s earthquake intensity scale. See what shaking each level means, from 0 to 7, and why a local Shindo reading 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 →