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According to Icelandic news there is a good chance of a eruption in Grímsfjall. Following the glacier flood from Grímsvötn glacier lake. That is at least the opinion of Páll Einarsson, a geologist at University of Iceland. This is not going to be a big eruption in Grímsfjall in Páll opinion. But it is most likely going to be similar in size to the eruption in Grímsfjall in the year 2004. But no damage did happen from that eruption and it did not erupt international flight paths (just domestic ones). In the news Páll also says that the pressure inside Grímsfjall magma chamber appears to be slightly higher then in the year 2004. But otherwise the situation in Grímsfjall is almost identical to the one in the year 2004.
Indonesia's deadly Mount Merapi erupted Wednesday with its biggest volcanic explosion yet, forcing hasty evacuations of more villagers and the panicked refugees who already fled the initial blast a week ago.
A strong earthquake struck off eastern Indonesia early Wednesday evening, but no damage or injuries were immediately reported and no tsunami warning was issued. Indonesia rests on a series of fault lines that make the sprawling archipelago nation one of the most seismically active places in the world.
The U.S. Geological Survey said Wednesday's quake had a preliminary magnitude of 6.1. It hit off Papua province some 18 miles (29 kilometers) beneath the ocean floor.
The volcanic eruption lasted more than an hour and shot searing ashes miles into the sky. Panicked people in Umbulhardjo refugee camp screamed and children cried when they saw the volcanic materials hurled into the sky and down the mountain's slopes.
San Juan Volcanic Field, Colorado: Did you know that the Fish Canyon Tuff from the San Juan Volcanic Field in Colorado is the only known VEI 9 eruption on the planet? It is believed to been an eruption that produced 5000 km3 of tuff. A good comparison is imagine the Fish Canyon Tuff as an oil drum and the 1991 eruption of Pinatubo would then scale to be roughly the size of a coffee cup.
Originally posted by Anmarie96That certainly can't be good! I am wondering what the latest VEI is for the last explosion
The original area covered by the lava flows is estimated to have been as large as 1.5 million km², approximately half the size of modern India. The Deccan Traps region was reduced to its current size by erosion and plate tectonics; the present area of directly observable lava flows is around 512,000 km2 (197,684 sq mi).
Vast volumes of basaltic lava paved over a large expanse of primeval Siberia in a flood basalt event. Today the area covered is about 2 million km² – roughly equal to western Europe in land area – and estimates of the original coverage are as high as 7 million km². The original volume of lava is estimated to range from 1 to 4 million km³.
This relationship allows a re-estimate of the volume of Emeishan magmas, which is as much as 3.8 x 106 km3, typical of plume-generated LIPs in the world.
Kelana Kota 04 November 2010, 21:07:08| Laporan Eddy Prastyo Aktivitas Gunung Semeru Menurun suarasurabaya.net| Kamis (04/11) malam, aktifitas Gunung Semeru kembali normal sesudah pukul 06.15 WIB mengeluarkan guguran awan panas atau wedus gembel. SUPARNO Petugas Pos Pantau Semeru di Gunung Sawur pada Suara Surabaya, mengatakan jarak luncur awan panas sekitar 4 km menuju arah desa Pronojiwo kecamatan Pronojiwo Lumajang. Karena awan panas tidak sampai masuk ke pemukiman warga, sampai sekarang belum ada evakuasi. SUPARNO juga mengatakan Desa Rowo Bahung kecamatan Pronojiwo merupakan desa terdekat dengan puncak Semeru, sekitar 10 sampai 11 km. Sampai sekarang belum ada perintah untuk mengungsi bagi warga Lumajang yang tinggal di lereng Semeru. Material vulkanik yang keluar dari puncak Semeru tadi pagi berupa bongkahan batu besar dan pasir yang kemudian diikuti awan panas atau wedus gembel. Berbeda dengan letusan Gunung Merapi, guguran awan panas Semeru tidak didahului gempa vulkanik.(edy) Powered by Telkomsel BlackBerry ®