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India gears up for Indian Ocean-wide mock tsunami drill

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HYDERABAD: India, along with 23 other countries, is participating in a major Indian Ocean-wide mock tsunami drill on September 9 and 10 that is aimed at testing the Indian Ocean Tsunami Warning and Mitigation System (IOTWS).

The drill, organized under the auspices of UNESCO's Intergovernmental Oceanographic Commission, is expected to increase preparedness, evaluate response capabilities in each country and improve coordination throughout the region, an official statement here said.

"The drill also aims at evaluating the system's operational capacity, efficiency of communication among the different concerned actors, and the state of preparation of national emergency services," it said.

The Indian Tsunami Early Warning Centre (ITEWC), based out of the Indian National Centre for Ocean Information Services (INCOIS), Hyderabad, an autonomous institution under the Ministry of Earth Sciences, would participate in this drill, both in its capacity as National Tsunami Warning Centre (NTWC) for India as well as one of the Regional Tsunami Advisory Service Providers (RTSP) in the Indian Ocean region.

The ITEWC, operational since October 2007, has all the necessary computational infrastructure for the reception of real-time data from seismic and sea-level networks, tsunami modeling, as well as generation and dissemination of tsunami bulletins for the entire Indian Ocean region.

Since October 12, 2011, ITEWC, along with other RTSPs (Australia and Indonesia), has taken over the responsibility of providing tsunami bulletins of Indian Ocean member countries, under the IOC/UNESCO's ICG/IOTWS framework, the statement said.

The mock drill would simulate tsunamis originating from two earthquake sources on successive days, one in the eastern Indian ocean and the other in the north-western Indian ocean.




The first scenario simulates a magnitude 9.1 earthquake south of Java and Indonesia and would commence at 5.30 hours IST on September 9.

The second scenario simulates a magnitude 9.0 earthquake in the Makran Trench, south of Iran and Pakistan and would commence at 1130 hours IST on September 10.

On both days, the drill would run in real time for a period of 12 hours.

During the drill, ITEWC would generate and disseminate 15 tsunami notifications to both its National and Regional contacts through GTS, email, fax, SMS as well as web, the statement added.

The recipients at the national level include control rooms of NDMA, MHA, Disaster Management Offices of all coastal states/UTs, NDRF, Indian Coast Guard, Indian Navy and critical coastal installations (such as ports and power plants).

The recipients have the choice to participate in the mock drill on either or both the days.

Based on their level of planning and preparedness, the recipients may decide to limit this drill to check the communication links between their institutions and INCOIS or (ii) activate their standard operating procedure (SOPs) and take it further down to institutional/state/district/community level.

"Feedback from the participants after the drill is expected to identify and fix any gaps in communication channels or the SOPs of all stakeholders," the statement said.
 
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The Indian Tsunami Early Warning Centre (ITEWC), based out of the Indian National Centre for Ocean Information Services (INCOIS), Hyderabad
08TH_TSUNAMI_2096681f.jpg

Scientists working at the Tsunami Early Warning Centre of the Indian National Centre for Ocean Information Services in Hyderabad.
 
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How did it go ?
Indian Ocean-wide tsunami early-warning drill
JAKARTA: Indonesia and 20 other countries around the Indian Ocean are taking part in a two-day tsunami early-warning exercise. The drill kicked off at 8am Singapore time on Tuesday (Sep 9).

The exercise is meant to test the countries' readiness and response times to a potentially devastating event. Two earthquakes will be simulated over successive days. The first one was re-enacted in Southern Java on Tuesday.

At 7am Jakarta time, an 8.8-magnitude undersea earthquake was simulated in Southern Java. Within seconds, it triggered the system in the Earthquake and Tsunami Centre in Jakarta and instantly turned the operational centre into a hive of activity - with the team analysing data that came in at real time.

The early warning centre did not exist 10 years ago. There was no satellite and no sophisticated computers - just good, old radio signals. And it took disaster management agencies more than an hour to realise that a tsunami had struck the coast of Aceh with devastating effects.

Today, it takes them less than two minutes to detect a potential tsunami and send out a warning to more than 20 countries in the Indian Ocean.

Ardito M.Kodijat, Coordinator at UNESCO Indian Ocean Tsunami Information Centre, said: "For what we call the regional tsunami or distant tsunami, which is ocean-wide, the waves will arrive at their coasts in terms of hours. So, having the first bulletin issued in five minutes, I think for the distant tsunami, it gives the countries quite sufficient time (to react)."

The multi-million-dollar system at the Earthquake and Tsunami Centre in Jakarta was developed after the 2004 Boxing Day tsunami on 26 December wiped out the coastlines of Aceh and those of several other Indian Ocean countries, including Thailand and India. It was the deadliest tsunami in living memory, killing more than 200,000 people.

According to the US Geological Survey, the 9-magnitude undersea earthquake had released the energy of 23,000 Hiroshima-type atomic bombs.

Mochammad Riyadi, director of Indonesia's Earthquake & Tsunami Center, said: "Then, we didn't use satellite. We had a number of radio links. Those are limited, too. Consequently, when the tsunami struck Aceh we received the information very late. Even our communication system was manually operated."

The tsunami early-warning exercise is carried out once every two to three years. It involves countries as far as South Africa and Yemen - where tsunami waves could potentially reach. Each country can decide how detailed they want their exercises to be. Some have even involved the evacuation of people.

Just as the exercise was in full swing on Tuesday, the Earthquake and Tsunami Centre in Jakarta picked up an actual 5.2-magnitude earthquake near Sulu in the southern Philippines. It was not strong enough to cause a tsunami. Hence no warning was sent out.

But it shows how critical the centre is. Lives will be saved, as long as people living in coastal areas heed the centre's warnings.

Indian Ocean-wide tsunami early-warning drill - Channel NewsAsia

How did it go ?
Indian Ocean-wide tsunami early-warning drill

JAKARTA: Indonesia and 20 other countries around the Indian Ocean are taking part in a two-day tsunami early-warning exercise. The drill kicked off at 8am Singapore time on Tuesday (Sep 9).

The exercise is meant to test the countries' readiness and response times to a potentially devastating event. Two earthquakes will be simulated over successive days. The first one was re-enacted in Southern Java on Tuesday.

At 7am Jakarta time, an 8.8-magnitude undersea earthquake was simulated in Southern Java. Within seconds, it triggered the system in the Earthquake and Tsunami Centre in Jakarta and instantly turned the operational centre into a hive of activity - with the team analysing data that came in at real time.

The early warning centre did not exist 10 years ago. There was no satellite and no sophisticated computers - just good, old radio signals. And it took disaster management agencies more than an hour to realise that a tsunami had struck the coast of Aceh with devastating effects.

Today, it takes them less than two minutes to detect a potential tsunami and send out a warning to more than 20 countries in the Indian Ocean.

Ardito M.Kodijat, Coordinator at UNESCO Indian Ocean Tsunami Information Centre, said: "For what we call the regional tsunami or distant tsunami, which is ocean-wide, the waves will arrive at their coasts in terms of hours. So, having the first bulletin issued in five minutes, I think for the distant tsunami, it gives the countries quite sufficient time (to react)."

The multi-million-dollar system at the Earthquake and Tsunami Centre in Jakarta was developed after the 2004 Boxing Day tsunami on 26 December wiped out the coastlines of Aceh and those of several other Indian Ocean countries, including Thailand and India. It was the deadliest tsunami in living memory, killing more than 200,000 people.

According to the US Geological Survey, the 9-magnitude undersea earthquake had released the energy of 23,000 Hiroshima-type atomic bombs.

Mochammad Riyadi, director of Indonesia's Earthquake & Tsunami Center, said: "Then, we didn't use satellite. We had a number of radio links. Those are limited, too. Consequently, when the tsunami struck Aceh we received the information very late. Even our communication system was manually operated."

The tsunami early-warning exercise is carried out once every two to three years. It involves countries as far as South Africa and Yemen - where tsunami waves could potentially reach. Each country can decide how detailed they want their exercises to be. Some have even involved the evacuation of people.

Just as the exercise was in full swing on Tuesday, the Earthquake and Tsunami Centre in Jakarta picked up an actual 5.2-magnitude earthquake near Sulu in the southern Philippines. It was not strong enough to cause a tsunami. Hence no warning was sent out.

But it shows how critical the centre is. Lives will be saved, as long as people living in coastal areas heed the centre's warnings.

Indian Ocean-wide tsunami early-warning drill - Channel NewsAsia
 
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