Wednesday, January 05, 2005

Tsunamis in Indonesia

Dear Mouse,

The reason for the inability to detect the killer tsunami in Indonesia and other Asian countries recently was the absence of an early warning system in the place where it struck. The experts said that there was no tsunami incident in that region so they deemed it not necessary installing one considering the costs of installation and the monitoring operations

The table below shows the tsunamis recorded in Indonesia for the last ten years.

Indonesia

Tsunamis in Indonesia 1994-2004

Date Location Earthquke intensity

2004-12-26 OFF WEST COAST OF SUMATRA 9

2004-01-28 SERAM, INDONESIA 6.5

2002-10-10 IRIAN JAYA, INDONESIA 7.7

2000-05-04 SULAWESI, INDONESIA 7.5

1996-12-14 SULAWESI, INDONESIA 7.0

1996-02-17 IRIAN JAYA, INDONESIA 8.1

1996-01-01 SULAWESI, INDONESIA 7.6

1995-05-14 TIMOR 6.9

1995-03-19 INDONESIA 7.1

1995-02-13 INDONESIA 6.8

1995-01-27 INDONESIA 6.8

1994-10-08 HALMAHERA INDONESIA 6.9

1994-06-02 JAVA, INDONESIA 7.2

1994-02-15 SOUTHERN SUMATRA 7.0

1994-01-21 HALMAHERA, INDONESIA 6.2

The tsunami that hit the West Coast of Sumatra on December 26, 2004 was the first,not only for the ten- year period but also in the tsunami history of Indonesia.

So was the tsunami in Seram on January 28,2004.

The other places visited by tsusnamis have a record of at least three.

Irian Jaya had three tsunamis; one in 1934, followed by another one in 1996 after 62 years and the most recent was in 2002.

Tsunamis in Irian Jaya 1934-2002

Date Location Earthquke intensity

1934-07-19 IRIAN JAYA, INDONESIA

1996-02-17 IRIAN JAYA, INDONESIA

2002-10-10 IRIAN JAYA, INDONESIA

The table below shows that there were also three tsunami incidents in Sulawesi. It was year 1996 when this place was visited by this calamity. It is worthnoting that a tsunami struck in the beginning of the year of 1996 and another one in December of the same year. Before 1996, there was no record of tsunami which makes me think that this is a new place for tsunami alert.

Tsunamis in Sulawesi 1996-2000

1996-01-01 SULAWESI, INDONESIA

1996-12-14 SULAWESI, INDONESIA

2000-05-04 SULAWESI, INDONESIA

Call it coincidence,but Timor, another place in Indonesia that had tsunami events for the last 10 years had also three incidents. Unlike the first two places mentioned above, Timor's tsunami dated back as early as 1855 in April. After 172 years, it struck the same place in 1982 on a Christmas.

Do we see a pattern of tsunamis in December?

The most recent tsunami event was in 1995.

From these data and those of Taal, we can say that a possility that a place that had its last tsunami more than a century ago can have another one is not remote.

Tsunamis in Timor 1855-1995

1855-01-04 TIMOR

1982-12-25 TIMOR

1995-05-14 TIMOR

Tsunami events were all over Indonesia. Many of them occurred in no specific place. Table below shows that there were nine of them since 1884.

Intervals of tsunami events ranged from 8 to 22 years except between 1984 and 1923 where the gap was 61 years and the year 1995 where interval between the last and the next tsunami was only one month and six days.

Tsunamis in Indonesia 1884-1995

1884-01-00 INDONESIA

1906-06-01 INDONESIA

1906-09-14 INDONESIA

1914-06-25 INDONESIA

1923-03-02 INDONESIA

1984-01-08 INDONESIA

1995-01-27 INDONESIA

1995-02-13 INDONESIA

1995-03-19 INDONESIA

Jut like Irian Jaya, Timor and Sulawesi, Halmahera also recorded three tsunamis,although the event in 1892 had a more specific place. The first tsunami in 1994 struck in January, followed in October in the same year.

Tsunamis in Halmahera 1892-1994

1892-01-07 AURI, HALMAHERA,INDONESIA

1994-01-21 HALMAHERA, INDONESIA

1994-10-08 HALMAHERA INDONESIA

Among the places that had tsunamis for the last ten years, Java has the longest history,dating as back as 1722.

There were 12 of them with intervals ranging from one year in 1862-63 and 77 years between 1994 and 1917.

Tsunamis in JAVA 1722-1994

1722-10-00 JAVA, Indonesia

1757-08-24 JAVA, INDONESIA

1773-00-00 JAVA, INDONESIA

1823-09-09 JAVA, INDONESIA

1843-02-07 JAVA, INDONESIA

1852-11-23 JAVA, INDONESIA

1861-06-05 JAVA, INDONESIA

1862-04-08 JAVA, INDONESIA

1863-03-16 JAVA, INDONESIA

1889-11-23 JAVA, INDONESIA

1917-03-16 JAVA, INDONESIA

1994-06-02 JAVA, INDONESIA

The tsunami in South Sumatra on February 5, 1994 was the first for this region.

From these statistics, can we safely assume that the earth crusts that move and cause underneath earthquake could have moved and were affecting new regions in the country.

For the past centuries, Banda Sea had the most number of tsunamis.

More of these. Sa pagbabalik ng THE BUZZ. ehek.

p>Source of unprocessed data:tsunami database

The Ca t

1 Comments:

At 6:32 PM, Blogger mr nice ash said...

i wish that this tragedy never happen again.

 

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