8th Strong Quake Strikes Ryukyu Islands, Japan

Eighth Strong Earthquake Measuring 6.6Mw Strikes Japan Region

Background:

• Seventh Powerful Quake Hits Japan Region
• 6th Strong Quake Strikes Near Ryukyu Isles, Japan
• 5th Strong Quake Strikes Japan Region
• 6 to 8 more strong EQs may yet strike region
• Earthquake Forecast: Tokyo, Japan

Referring to an earlier forecast, FEWW Moderators believe an additional series of 5 – 6 quakes measuring ≥ 6.0 Mw could strike Japan region in the coming weeks.

FEWW Moderators had previously anticipated more powerful earthquakes in the region, including as many as 10 additional magnitude 6+ quakes to strike the region in the coming weeks.

Earthquake Information Issued by JMA at 15:15 JST 07 Feb 2010

Occurred at (JST)	Latitude	Longitude	Depth	Mag.	Region Name
15:10 JST 07 Feb 2010	23.4ºN	124.0ºE	10km	6.6Mw	Ishigakijima Kinkai

Approximate distances (USGS)

• 115 km (70 miles) SSW of Ishigaki-jima, Ryukyu Islands, Japan
• 225 km (140 miles) ESE of Hua-lien, Taiwan
• 225 km (140 miles) ESE of Su-ao, Taiwan
• 2055 km (1280 miles) SW of TOKYO, Japan

Note: USGS/EHP has again downgraded the quake by 0.2 order of magnitude to 6.4Mw

Tsunami Forecast/Watch

JMA Issued a Tsunami Forecast at 15:13 JST 07 Feb 2010 for MIYAKOJIMA and YAEYAMA areas saying that tsunami height was expected to be about 0.5 meters.
However, the tsunami watch was later canceled. JMA said: “No tsunami damage at some of the other coasts though there may be slight sea level changes.:

Fire-Earth anticipates intense seismic activity and volcanic unrest/activity in the Japan Region throughout 2010 and beyond.

10-degree Map Centered at 25°N,125°E

Earthquake Location Map. Source: USGS/EHP. Map enhanced by FEWW.

Political Map of Japan.

Related Links:

• Seventh Powerful Quake Hits Japan Region [October 30, 2009]
• 6th Strong Quake Strikes Near Ryukyu Isles, Japan [September 29, 2009]
• Strong Quake Strikes Near Shizuoka, Japan [August 11, 2009]
• 5th Strong Quake Strikes Japan Region [August 17, 2009]
• 4th Powerful Quake Strikes Japan Region [August 17, 2009]
• 3rd Powerful Quake in 3 Days Strikes Japan Region [August 13, 2009]
• Strong Quake Strikes Near Shizuoka, Japan [August 10, 2009]
• Powerful Earthquake Strikes Near Izu Islands, Japan [August 9, 2009]
• M 6.4 Quake Strikes SW Ryukkyu Isls, Japan [August 5, 2009]
• Magnitude 6.3 quake strikes Taiwan region
• Earthquakes [Links Page]
• Earthquake Forecast: Tokyo, Japan

5th Strong Quake Strikes Japan Region

Magnitude 6.5 Quake Strikes SW Ryukyu Islands, Japan

FEWW anticipates more earthquakes measuring 6+ to strike Japan Region in 2009

Japan Meteorological Agency (JMA) reported an earthquake measuring 6.5 striking Ishigakijima Kinkai area, SW Ryukyu Islands, Japan region at a depth of 10km on  17 Aug 2009 at 19:11 JST ( 10:11UTC).

Details of the earthquake were as follows:

Earthquake Information
Occurred at: 19:11 JST 17 Aug 2009
Region name ISHIGAKIJIMA KINKAI
Latitude: 23.1N
Longitude: 123.7E
Depth: about 10km
Magnitude: 6.5

Tsunami Warning

JMA issued a tsunami advisory/warning for MIYAKOJIMA and YAEYAMA areas cautioning of sea-level rises of about 0.5 meters. However, there were NO reports of damage, it said

Source: Japan Meteorological Agency (JMA). Image may be subject to copyright.

USGS reported the event as measuring 6.4Mw [Event ID: us2009kkay] followed by an aftershock of magnitude 5.5 [Event ID: us2009kkaz.]

10-degree Map Centered at 25°N,125°E

EQ Location Map. Source: USGS

Related Links:

• 4th Powerful Quake Strikes Japan Region
• 3rd Powerful Quake in 3 Days Strikes Japan Region

• Strong Quake Strikes Near Shizuoka, Japan
• Powerful Earthquake Strikes Near Izu Islands, Japan
• Earthquakes [Links Page]
• Earthquake Forecast: Tokyo, Japan
• M 6.4 Quake Strikes SW Ryukkyu Isls, Japan
• Magnitude 6.3 quake strikes Taiwan region