2008 Iwate–Miyagi Nairiku earthquake
On 14 June, the 2008 Iwate earthquake struck the Tōhoku region of northeastern Honshū in Japan. Japan Meteorological Agency (JMA) officially named this earthquake the Iwate–Miyagi Nairiku earthquake in 2008 (平成20年（2008年）岩手・宮城内陸地震). This earthquake occurred in the south of the inland of Iwate Prefecture at 8:43 JST on June 14 (23:43 UTC on June 13). The JMA magnitude was estimated at MJMA 7.2, and the moment magnitude by USGS was at Mw 6.9. The epicenter was located at 39°01.7′N 140°52.8′E, about 85 kilometres (55 mi) north of Sendai and about 385 kilometres (240 mi) north-northeast of Tokyo.
| 岩手・宮城内陸地震 | |
River channel blockage in the Sako River after the earthquake | |
USGS ShakeMap | |
| UTC time | 2008-06-13 23:43:45 |
|---|---|
| ISC event | 13377361 |
| USGS-ANSS | ComCat |
| Local date | 14 June 2008 |
| Local time | 08:43 JST |
| Magnitude | 7.2 MJMA 6.9 Mw |
| Depth | 10 km (6 mi) (USGS) 8 km (5 mi) (JMA) |
| Epicenter | 39°01.7′N 140°52.8′E |
| Type | Reverse – Intraplate |
| Areas affected | Iwate Prefecture, Tōhoku region, Japan |
| Max. intensity | JMA 6+ (MMI VII) |
| Peak acceleration | 4.36 g (vector sum) 4278 Gal |
| Aftershocks | 483 felt aftershocks by 1 July (JMA) Largest: MJMA 5.7 on 14 June (9:20 JST) |
| Casualties | 12 dead, 436 injured (1 July 2007 at 17:00 JST) |
The strongest shaking was measured in the cities of Ōshū (Iwate) and Kurihara (Miyagi), both of which were measured as "strong 6" on the Japan Meteorological Agency seismic intensity scale, shindo (震度, shindo). Peak ground acceleration readings were high, with a maximum vector sum (3 component) value of 4,278 cm/s2 (4.36g).