2008 Iwate–Miyagi Nairiku earthquake
earthquake struck mid Tōhoku region, Japan on June 14, 2008
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 MJMA7.2, 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.
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 exceptionally high, with a maximum vector sum (3 component) value of 4,278 cm/s2 (4.36 g).
Intensity
Seismic intensity (震度, Shindo) represents the strength of ground motion. JMA uses the scales of 0 to 7: 0, 1, 2, 3, 4, weak/strong 5, weak/strong 6, 7.
Tremors were felt across a large area.
“2008 Iwate–Miyagi Nairiku earthquake” enters the record as earthquake struck mid Tōhoku region, Japan on June 14, 2008. Crown Archives preserves that source wording while asking what Iwate, Miyagi and Nairiku can confirm, complicate or overturn.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 18, 2026. The linked authority identifier is Q748301. Authority coordinates are 39.028, 140.880. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2008.
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This entry incorporates text from “2008 Iwate–Miyagi Nairiku earthquake” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.