2024 Hyūga-nada earthquake: Difference between revisions
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On 8 August 2024, at 15:42:55 [[Japan Standard Time|JST]] (07:42 UTC), a {{M|w}} 7.1 earthquake struck offshore [[Miyazaki Prefecture]], [[Kyushu]], [[Japan]], {{cvt|20|km|mi|abbr=off}} northeast of [[Nichinan, Miyazaki|Nichinan]].<ref name="USGS">{{cite anss|M 7.1 - 20 km NE of Nichinan, Japan|2024|us6000nith}}</ref> |
On 8 August 2024, at 15:42:55 [[Japan Standard Time|JST]] (07:42 UTC), a {{M|w}} 7.1 earthquake struck offshore [[Miyazaki Prefecture]], [[Kyushu]], [[Japan]], {{cvt|20|km|mi|abbr=off}} northeast of [[Nichinan, Miyazaki|Nichinan]].<ref name="USGS">{{cite anss|M 7.1 - 20 km NE of Nichinan, Japan|2024|us6000nith}}</ref> |
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==Impact== |
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Five people were injured in Miyazaki Prefecture; two each in [[Nichinan, Miyazaki|Nichinan]] and [[Miyazaki (city)|Miyazaki]] and another in [[Miyakonojō]]. A section of [[Japan National Route 220|National Route 220]] was closed due to rockfalls. In Miyazaki, a house partially collapsed and [[Miyazaki Airport]] received minor damage. In [[Kagoshima Prefecture]], a two-story house collapsed in [[Ōsaki, Kagoshima|Ōsaki]], and a landslide was reported in [[Shibushi, Kagoshima|Shibushi]].<ref>{{cite news|title=【被害】宮崎 日南市で2人けが 各地で住宅被害も|url=https://www3.nhk.or.jp/news/html/20240808/k10014542241000.html|date=8 August 2024|access-date=8 August 2024|publisher=[[NHK]]|language=ja}}</ref> |
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==See also== |
==See also== |
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*[[List of earthquakes in 2024]] |
*[[List of earthquakes in 2024]] |
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Revision as of 11:04, 8 August 2024
 | This article is about a current earthquake where information can change quickly or be unreliable. The latest page updates may not reflect the most up-to-date information. |
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| UTC time | 2024-08-08 08:42:55 |
|---|---|
| USGS-ANSS | ComCat |
| Local date | August 8, 2024 |
| Local time | 15:42:55 JST |
| Magnitude | 7.1 MJMA 7.1 Mw |
| Depth | 25 km (16 mi) |
| Epicenter | 31°43′08″N 131°31′37″E / 31.719°N 131.527°E |
| Areas affected | Kyushu, Japan |
| Max. intensity | JMA 6− (MMI VIII) |
| Peak acceleration | 45.93g[1] |
| Casualties | 5+ injured |
On 8 August 2024, at 15:42:55 JST (07:42 UTC), a Mw 7.1 earthquake struck offshore Miyazaki Prefecture, Kyushu, Japan, 20 km (12 mi) northeast of Nichinan.[1]
Tectonic setting
The Hyūga Sea is located at the southwestern end of the Nankai Trough, an active subduction zone. The Nankai Trough represents the plate boundary where the Philippine Sea Plate subducts beneath the Eurasian Plate. The area is associated with large earthquakes in 1968 (Mw 7.5) and 1996 (Mw 6.7 and 6.8). The Hyūga Sea is interpreted as a transition zone between the highly coupled Nankai Trough in the northeast and weakly coupled Ryukyu Trench further southwest.[2] The 1968 and 1996 earthquakes were subduction zone events occurring on the plate boundary. About 2 km (1.2 mi) beneath the seafloor, low-frequency earthquakes occur near the shallow subduction interface. Beneath the east coast of Kyushu, on the deeper part of the subduction zone, slow slip events were detected between 1996 and 2017.[3]
Earthquake
The United States Geological Survey reported a magnitude (Mww ) of 7.1, at a depth of 25 km (16 mi) and a maximum Modified Mercalli intensity of VIII (Severe).[1]
The USGS initially reported two separate events, measuring magnitudes 7.1 and 6.9 respectively. This was later fixed.[4]
| Intensity | Prefecture | Locations |
|---|---|---|
| 6− | Miyazaki | Nichinan |
| 5+ | Miyazaki | Miyazaki, Kushima, Miyakonojō |
| Kagoshima | Ōsaki | |
| 5− | Miyazaki | Aya, Kunitomi, Shintomi, Takanabe, Takaharu, Kobayashi |
| Kagoshima | Soo, Kanoya, Kimotsuki, Higashikushira, Tarumizu, Kirishima, Kagoshima, Aira |
Impact
Five people were injured in Miyazaki Prefecture; two each in Nichinan and Miyazaki and another in Miyakonojō. A section of National Route 220 was closed due to rockfalls. In Miyazaki, a house partially collapsed and Miyazaki Airport received minor damage. In Kagoshima Prefecture, a two-story house collapsed in Ōsaki, and a landslide was reported in Shibushi.[6]
See also
- List of earthquakes in 2024
- List of earthquakes in Japan
- 2024 Noto earthquake
- 2016 Kumamoto earthquakes
References
- ^ a b c ANSS. "M 7.1 - 20 km NE of Nichinan, Japan 2024". Comprehensive Catalog. U.S. Geological Survey.
- ^ Asano, Youichi; Obara, Kazushige; Matsuzawa, Takanori; Hirose, Hitoshi; Ito, Yoshihiro (2015). "Possible shallow slow slip events in Hyuga-nada, Nankai subduction zone, inferred from migration of very low frequency earthquakes". Geophysical Research Letters. 42 (12): 331–338. doi:10.1002/2014GL062165.
- ^ Ioki, Kei; Yamashita, Yusuke; Kase, Yoshihiro (2023). "Effects of the Tsunami Generated by the 1662 Hyuga-Nada Earthquake off Miyazaki Prefecture, Japan". Pure and Applied Geophysics. 180 (6): 1897–1907. doi:10.1007/s00024-022-03198-3. hdl:2433/284057.
- ^ Tomohiro Osaki (8 August 2024). "7.1-magnitude Earthquake Hits Off Japan". Barron's. Retrieved 8 August 2024.
- ^ "Earthquake information". Japan Meteorological Agency. 8 August 2024. Retrieved 8 August 2024.
- ^ "【被害】宮崎 日南市で2人けが 各地で住宅被害も" (in Japanese). NHK. 8 August 2024. Retrieved 8 August 2024.