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by **tubby** » Mon Aug 10, 2009 10:08 pm

A tsunami watch has been issued across the Indian Ocean after a magnitude 7.6 earthquake, while a second tremor caused buildings to shake in Japan.

The Pacific Tsunami Warning Centre put India, Burma, Indonesia, Thailand and Bangladesh on alert for a possible tsunami following the first quake off the Andaman Islands

It was 20.6 miles (33km) deep and was centred 163 miles (262km) north of Port Blair in the islands, which belong to India, the US Geological Survey reported.

Around 22 minutes later, a second earthquake, measuring 6.4 on the Richter scale, jolted eastern and central Japan.

It prompted a tsunami warning for waves of up to 50cm (20 inches) for parts of the Pacific coast, the country's meteorological agency said.

Houses in the capital Tokyo were rattled by the quake, while a nuclear power station in Hamaoka has closed two units for safety checks.

The epicentre of the earthquake was around 16 miles (26km) deep and 106 miles (170km) southwest of Tokyo.

Paul Caruso, a geophysicist from the US Geological Survey, told Sky News the two quakes were unlikely to be linked.

More follows...

[url=http://news.sky.com/skynews/Home/World-News/Tsunami-Watch-Issued-For-India-Indonesia-Burma-Thailand-And-Bangladesh-After-76-Earthquake
/Article/200908215358040?lpos=World_News_Carousel_Region_0&lid=ARTICLE_15358040_Tsunami_Watch_Issued_For_India%2C_Indonesia%2C_Burma%2C_Thailand_And_Bangladesh_After_7.6_Earthquake]http://news.sky.com/skynews....thquake[/url]

by **tubby** » Mon Aug 10, 2009 10:24 pm

Wow I can't believe 21 people would read news like this and have no comments. You bunch of sado :censored:

.

by **woof woof !** » Mon Aug 10, 2009 10:25 pm

We're waiting for the "more follows"

by **red37** » Mon Aug 10, 2009 10:27 pm

Earthquak

Want me to edit it bav

by **woof woof !** » Mon Aug 10, 2009 10:29 pm

Actually , I'm looking at the geography of these two quakes , one is in the Andaman sea part of the Indian Ocean and the other is apparently in the pacific, although geographically thousands of miles apart and experts say they're not connected I can't help but think it's more than coincidental.

Happy now Misty ?

by **tubby** » Mon Aug 10, 2009 10:30 pm

red37 wrote:Earthquak

Want me to edit it bav

Yeah if you can that would be great but it seemed I reached the character limit on that line mate.

Anyway this is really bad news. Off the top of my head I can't remember what the initial earthquake measured last time (Thailand) but 7.6 is quite high.

There was also some reports of a typhoon in China too.

by **bigmick** » Mon Aug 10, 2009 10:31 pm

Waves of 20 inches aren't that frightening surely

Feck me you get bigger waves than that on our local beach at low tide.

by **woof woof !** » Mon Aug 10, 2009 10:50 pm

bigmick wrote:Waves of 20 inches aren't that frightening surely Feck me you get bigger waves than that on our local beach at low tide.

My mate was in Phuket (kata beach) when the last Tsunami hit Mick. He said there was no wave to speak of , just a surge of water that just kept on coming.

by **red37** » Mon Aug 10, 2009 10:57 pm

bigmick wrote:Waves of 20 inches aren't that frightening surely Feck me you get bigger waves than that on our local beach at low tide.

A 20cm wave pulse expediting across several thousand miles of ocean, given a large enough bandwidth - hitting the continental shelf, and this is where its energy is dissipated as the wave retracts back against the shallow land and gains massive momentum from the force built up behind it from travelling so far.....would see a significant rise in the sea level generated as a result.

What starts out as a matter of inches can frequently end up being equated to several metres once it eventually hits land.

However this story doesn't seem to be getting much attention...so far. Most after all, are usually false alarms.

Hopefully, fingers crossed.

by **tubby** » Mon Aug 10, 2009 11:03 pm

I hope it doesn't get anywhere as bad as the last one.

red37 it could be that it only happened a short time ago so the news agencies currently don't have any info. Not even the indian/arab news channels have anything yet so it could well be that.

by **red37** » Mon Aug 10, 2009 11:11 pm

This is the latest bulletin:

TSUNAMI BULLETIN NUMBER 003
PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS
ISSUED AT 2124Z 10 AUG 2009

THIS BULLETIN FOR ALL AREAS OF THE INDIAN OCEAN.

CORRECTION TO PREVIOUS BULLETIN #2:

NO TSUNAMI HAS YET BEEN OBSERVED

... A REGIONAL TSUNAMI WATCH IS IN EFFECT ...

A TSUNAMI WATCH IS IN EFFECT FOR

INDIA / MYANMAR / INDONESIA / THAILAND / BANGLADESH

FOR OTHER AREAS OF THE INDIAN OCEAN REGION...THIS MESSAGE IS FOR
INFORMATION ONLY AT THIS TIME.

THIS BULLETIN IS ISSUED AS ADVICE TO GOVERNMENT AGENCIES. ONLY
NATIONAL AND LOCAL GOVERNMENT AGENCIES HAVE THE AUTHORITY TO MAKE
DECISIONS REGARDING THE OFFICIAL STATE OF ALERT IN THEIR AREA AND
ANY ACTIONS TO BE TAKEN IN RESPONSE.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

ORIGIN TIME - 1956Z 10 AUG 2009
COORDINATES - 14.1 NORTH 93.0 EAST
LOCATION - ANDAMAN ISLANDS INDIA REGION
MAGNITUDE - 7.7

EVALUATION

EARTHQUAKES OF THIS SIZE HAVE THE POTENTIAL TO GENERATE A
DESTRUCTIVE LOCAL TSUNAMI AND SOMETIMES A DESTRUCTIVE REGIONAL
TSUNAMI ALONG COASTS LOCATED USUALLY NO MORE THAN A THOUSAND
KILOMETERS FROM THE EARTHQUAKE EPICENTER. AREAS FURTHER FROM THE
EPICENTER COULD EXPERIENCE SMALL SEA LEVEL CHANGES AND STRONG OR
UNUSUAL COASTAL CURRENTS.

HOWEVER - IT IS NOT KNOWN THAT A TSUNAMI WAS GENERATED. THIS
WATCH IS BASED ONLY ON THE EARTHQUAKE EVALUATION. AUTHORITIES IN
THE REGION SHOULD TAKE APPROPRIATE ACTION IN RESPONSE TO THIS
POSSIBILITY. THE WATCH WILL NOT EXPAND TO OTHER AREAS OF THE
INDIAN OCEAN UNLESS ADDITIONAL DATA ARE RECEIVED TO WARRANT SUCH
AN EXPANSION.

ESTIMATED INITIAL TSUNAMI WAVE ARRIVAL TIMES AT FORECAST POINTS
WITHIN THE WARNING AND WATCH AREAS ARE GIVEN BELOW. ACTUAL
ARRIVAL TIMES MAY DIFFER AND THE INITIAL WAVE MAY NOT BE THE
LARGEST. A TSUNAMI IS A SERIES OF WAVES AND THE TIME BETWEEN
SUCCESSIVE WAVES CAN BE FIVE MINUTES TO ONE HOUR.

LOCATION FORECAST POINT COORDINATES ARRIVAL TIME
-------------------------------- ------------ ------------
INDIA NORTH ANDAMAN 13.3N 92.6E 2021Z 10 AUG
LITTLE ANDAMAN 10.7N 92.3E 2053Z 10 AUG
PORT BLAIR 11.9N 92.7E 2121Z 10 AUG
GREAT NICOBAR 7.1N 93.6E 2136Z 10 AUG
KAKINADA 17.2N 82.7E 2205Z 10 AUG
BALESHWAR 21.6N 87.3E 2231Z 10 AUG
MYANMAR PYINKAYAING 15.9N 94.3E 2047Z 10 AUG
CHEDUBA ISLAND 18.9N 93.4E 2100Z 10 AUG
SITTWE 20.0N 92.9E 2135Z 10 AUG
MERGUI 12.8N 98.4E 2243Z 10 AUG
YANGON 16.5N 96.4E 2321Z 10 AUG
INDONESIA BANDA ACEH 5.5N 95.1E 2204Z 10 AUG
THAILAND PHUKET 8.0N 98.2E 2244Z 10 AUG
KO PHRA THONG 9.1N 98.2E 2257Z 10 AUG
KO TARUTAO 6.6N 99.6E 0012Z 11 AUG
BANGLADESH CHITTAGONG 22.7N 91.2E 2340Z 10 AUG

ADDITIONAL BULLETINS WILL BE ISSUED BY THE PACIFIC TSUNAMI
WARNING CENTER FOR THIS EVENT AS MORE INFORMATION
BECOMES AVAILABLE.

THE JAPAN METEOROLOGICAL AGENCY MAY ISSUE ADDITIONAL INFORMATION
FOR THIS EVENT. IN THE CASE OF CONFLICTING INFORMATION...THE
MORE CONSERVATIVE INFORMATION SHOULD BE USED FOR SAFETY.

by **tubby** » Mon Aug 10, 2009 11:19 pm

If a Tsunami does not form, at what point after the predicted time will it be considered safe? I suppose we won't know properly for a few hours yet.

by **tubby** » Mon Aug 10, 2009 11:22 pm

It's not even on the breaking news ticker on Sky or BBC now. Was it all just a false alarm?

by **red37** » Mon Aug 10, 2009 11:24 pm

Apparantly, the Japan quake generated a 'minor' Tsunami of approxiamately 40 cm. But its often the case that the initial 'wave' isn't always the destructive one....like you say, up to a few hours afterwards really before they declare it safe.

by **red37** » Mon Aug 10, 2009 11:33 pm

Oh well, there is good news for the Andaman region at least:

TSUNAMI BULLETIN NUMBER 004
PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS
ISSUED AT 2211Z 10 AUG 2009

THIS BULLETIN IS FOR ALL AREAS OF THE INDIAN OCEAN.

... THE TSUNAMI WATCH IS CANCELLED ...

THIS BULLETIN IS ISSUED AS ADVICE TO GOVERNMENT AGENCIES. ONLY
NATIONAL AND LOCAL GOVERNMENT AGENCIES HAVE THE AUTHORITY TO MAKE
DECISIONS REGARDING THE OFFICIAL STATE OF ALERT IN THEIR AREA AND
ANY ACTIONS TO BE TAKEN IN RESPONSE.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

ORIGIN TIME - 1956Z 10 AUG 2009
COORDINATES - 14.1 NORTH 93.0 EAST
LOCATION - ANDAMAN ISLANDS INDIA REGION
MAGNITUDE - 7.7

EVALUATION

SEA LEVEL READINGS INDICATE THAT A SIGNIFICANT TSUNAMI WAS NOT
GENERATED. THEREFORE THE TSUNAMI WATCH ISSUED BY THIS CENTER
IS NOW CANCELLED.

THIS WILL BE THE FINAL BULLETIN ISSUED BY THE PACIFIC TSUNAMI
WARNING CENTER FOR THIS EVENT UNLESS ADDITIONAL INFORMATION
BECOMES AVAILABLE.

THE JAPAN METEOROLOGICAL AGENCY MAY ISSUE ADDITIONAL INFORMATION
FOR THIS EVENT. IN THE CASE OF CONFLICTING INFORMATION...THE
MORE CONSERVATIVE INFORMATION SHOULD BE USED FOR SAFETY.

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