![]() ![]() ![]() Intermediate levels for earthquakes with shindo five and six are "weak" or "strong", according to the degree of destruction they cause. Unlike other seismic intensity scales, which normally have twelve levels of intensity, shindo ( 震度, seismic intensity, literally "degree of shaking") as used by the Japan Meteorological Agency is a unit with ten levels, ranging from shindo zero, a very light tremor, to shindo seven, a severe earthquake. This is similar to the Modified Mercalli intensity scale used in the United States or the Liedu scale used in China, meaning that the scale measures the intensity of an earthquake at a given location instead of measuring the energy an earthquake releases at its epicenter (its magnitude) as the Richter scale does. In Japan, the Shindo scale is commonly used to measure earthquakes by seismic intensity instead of magnitude. In modern times, the catalogues compiled by Tatsuo Usami are considered to provide the most authoritative source of information on historic earthquakes, with the 2003 edition detailing 486 that took place between 4. įollowing the 1923 Great Kantō earthquake, the Imperial Earthquake Investigation Committee was superseded by the Earthquake Research Institute in 1925. The Imperial Earthquake Investigation Committee was created in 1892 to conduct a systematic collation of the available historical data, published in 1899 as the Catalogue of Historical Data on Japanese Earthquakes. Many historical records of Japanese earthquakes exist. The present list is not exhaustive, and furthermore reliable and precise magnitude data is scarce for earthquakes that occurred before the development of modern measuring instruments.Īlthough there is mention of an earthquake in Yamato in what is now Nara Prefecture on August 23, 416, the first earthquake to be reliably documented took place in Nara prefecture on May 28, 599 during the reign of Empress Suiko, destroying buildings throughout Yamato province. As indicated below, magnitude is measured on the Richter magnitude scale ( M L) or the moment magnitude scale ( M w), or the surface wave magnitude scale ( M s) for very old earthquakes. This is a list of earthquakes in Japan with either a magnitude greater than or equal to 7.0 or which caused significant damage or casualties. For the 11 March 2011 earthquake in the Tōhoku region, see 2011 Tōhoku earthquake and tsunami. I didn't feel it Earthquake details Date & timeģ2.6817°N / 131.975☎ ( Philippine Sea, Japan)ģ1 km (19 mi) SSE of Saiki (pop: 49,100) | Show on map | Quakes nearbyģ1 km (19 mi) ENE of Nobeoka (pop: 121,900) | Show on map | Quakes nearbyĤ5 km (28 mi) SSE of Tsukumiura (Tsukumi) (pop: 21,700) | Show on map | Quakes nearbyĦ8 km (42 mi) SSE of Tsurusaki (pop: 77,000) | Show on map | Quakes nearbyĨ0 km (50 mi) SE of Beppu (pop: 125,100) | Show on map | Quakes nearbyġ00 km (62 mi) NNE of Miyazaki (pop: 311,200) | Show on map | Quakes nearbyġ77 km (110 mi) SE of Fukuoka (pop: 1,392,300) | Show on map | Quakes nearbyħ85 km (487 mi) WSW of Tokyo (pop: 8,336,600) | Show on map | Quakes nearbyĩ6 km (60 mi) ENE of Kyūshū Island (pop: 13,232,000) | Show on map | Quakes nearbyįew Clouds 26.4☌ (79 F), humidity: 89%, wind: 1 m/s (2 kts) from Sġ."Japanese earthquake" redirects here. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. 49,100) located 49 km from the epicenter, Nobeoka (pop. Weak shaking might have been felt in Saiki (pop. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.īased on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter. The earthquake hit in the evening on Saturday, July 22nd, 2023, at 9:14 pm local time at a moderately shallow depth of 32.9 km. Japan's National Research Institute for Earth Science and Disaster Resilience (NIED) reported a magnitude 5.2 quake in Japan near Saiki, Saiki-shi, Oita, only 13 minutes ago. ![]()
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