Tambora waking up?

[HurricaneBill]

Signs of unrest at the famous Tambora Caldera in Indonesia

[crownweather]

Pulled this off of a geology group I belong to.

http://hisz.rsoe.hu/alertmap/site/?page ... &uid=11373


Updated: Sunday, 11 September, 2011 at 15:33 UTC
Description
Provincial authorities raised the alert level of Mount Tambora to the second-highest available as observers noted an increase of volcanic activity in the volatile mountain. “On August 30, we recorded seven volcanic earthquakes and since Sept. 8 the frequency of the quakes rose substantially, to between 12 and 16 per day,” Husnuddin, head of the West Nusa Tenggara Disaster Mitigation Agency (BPBD), told the Jakarta Globe on Sunday. The BPBD chief said a team of observers had been immediately deployed to Mount Tambora. The volcano, which was the site of the world’s deadliest eruption on record, showed no apparent visual signs of any upcoming eruption, but data collected on mechanical instruments gave cause for concern. “We still hope Mount Tambora’s alert level will not increase further. We hope we can lower the status of the volcano. Let us all pray everything will return to normal,” Husnuddin said. Abdul Haris from the Mount Tambora observatory station said the heightened alert status meant an eight-kilometer exclusion zone was being imposed. “We fear there will be toxic gas as a direct result of the increased activity,” he said.

Husnuddin said the BPBD swiftly met with leaders of the three districts surrounding the volcano — Dompu, Bima and Sumbawa. The agency also held talks with the leadership of Pekat and Tambora, two Dompu subdistricts near Tambora’s crater, to discuss possible evacuation plans if the alert status reaches the highest level. The agency also had identified locations for possible shelters to house people living around the volcano. There are four villages in the two subdistricts that are about eight kilometers from the crater. The BPBD requested several organizations be on stand-by, including the National Disaster Mitigation Agency (BNPB), the National Search and Rescue Agency (Basarnas) and the country’s Armed Forces, which have already deployed officials to several response stations in the two subdistricts. Two main evacuation routes for people in the four villages have also been identified. The volcano’s April 10, 1815, eruption killed more than 90,000 people, including some who died from famine and disease in the aftermath of the event. It is estimated to have had a Volcanic Explosivity Index value of seven, the only such explosion since the Hatepe eruption in New Zealand in the year 180, and only the fifth in human history. Classified as a “supercolossal event,” Tambora’s 1815 eruption ejected immense amounts of volcanic dust into the upper atmosphere, significantly impacting the global climate for many years afterward. In Indonesia, the volcano’s roar could be heard more than 800 miles away.

[Tireman4]

"Classified as a “supercolossal event,” Tambora’s 1815 eruption ejected immense amounts of volcanic dust into the upper atmosphere, significantly impacting the global climate for many years afterward. In Indonesia, the volcano’s roar could be heard more than 800 miles away."


Partially caused the Year Without A Summer in the United States..

The Year Without a Summer (also known as the Poverty Year, Year There Was No Summer, and Eighteen Hundred and Froze to Death[1]) was 1816, in which severe summer climate abnormalities caused average global temperatures to decrease by about 0.4–0.7 °C (0.7–1.3 °F),[2] resulting in major food shortages across the Northern Hemisphere.[3][4]


http://en.wikipedia.org/wiki/Year_Without_a_Summer

[Nightwatch]

Hmm..dangerous volcano.. .seems another one on Flores nearby is also rumbling, Lewotobi.

[HurricaneBill]

Since the 1815 eruption, Tambora has erupted 3 times.

1819 (VEI2), 1880 (VEI2), and 1967 (VEI0).

[HurricaneBill]

Latest report from the Global Volcanism Program:

Based on visual observation and seismic data, CVGHM reported an increase in activity at Tambora that started in April. Therefore, on 30 August, the Alert Level was raised to 2 (on a scale of 1-4). During 30 August-8 September seismicity continued to increase. Diffuse white plumes were observed on 5 September and rose 10 m above the crater rim. On 8 September the Alert Level was raised to 3 (on a scale of 1-4).