From the Extinction Protocol
Kamchatka’s
Zhupanovsky volcano erupts with large ash cloud: volcano awakes after
54 years
October
25, 2013 – KAMCHATKA – A
new explosive eruption started yesterday night (23 Oct). An ash plume
was detected drifting at an estimated 16,000 ft (5 km) altitude and
drifting ESE.
At least 1 mm of ash has been deposited in the
Nalychevo valley, a natural park between Zhupanovsky and Avachinsky
volcanoes.
Zhupanovsky volcano lies about 70 km northeast of the
capital of Kamchatka, Petropavlovsk-Kamchatsky, and had its last
eruption in 1959.
It is a complex volcano composed of several
overlapping cones aligned on a roughly east-west oriented axis.
The
new eruption comes from the same vent that has been also the site of
all known historical eruptions, located west of the highest point of
the volcanic massif. Zhupanovsky is the 8th volcano in Kamchatka to
erupt this year. –Volcano
Discovery
Indonesian
volcano expels powerful burst of ash; 3,300 evacuate, second large
eruption in 40 days
October
25, 2013 – INDONESIA - A
volcano in western Indonesia erupted Thursday, unleashing a column of
dark volcanic material high into the air weeks after villagers were
returning home from an earlier eruption, officials said.
The
explosion at Mount Sinabung, located in North Sumatra province, shot
black ash 3 km into the air, but there were no reports of injuries or
damage, said National Mitigation Agency spokesman Sutopo Purwo
Nugroho. He said villages, farms and trees around the
2,600-meter-high rumbling volcano were covered in thick gray ash,
prompting authorities to evacuate more than 3,300 people. Most were
from two villages within 3 km of the mountain in Karo district.
No
lava or debris spewed from the volcano, and nearby towns and villages
were not in danger, but authorities warned tourists to stay away from
the danger zone located 1.5 km from the crater, Nugroho said.
Last
month, more than 15,000 people were forced to flee when the volcano
rumbled to life after being dormant for three years, belching ash and
smoke and igniting fires on its slopes.
The volcano’s last major
eruption, in August 2010, killed two people and forced 30,000 others
to flee. It caught many scientists off guard because it had been
quiet for four centuries.
Mount Sinabung is among more than 120
active volcanoes in Indonesia, which is prone to seismic upheaval due
to its location on the Pacific “Ring of Fire,” an arc of volcanos
and fault lines encircling the Pacific Basin. –Japan
Times
Wall
of rock rises out of the ground in the Philippines: new fault
triggered large quake
Residents
stand next to a long earthen wall which formed following the Oct. 15
earthquake in Barangay Anonang in Inabanga, Bohol. Phivolcs
scientists said the wall is the face of a previously unknown fault
line which caused the magnitude 7.2 quake
October
24, 2013 – PHILIPPINES – As
the magnitude 7.2 earthquake ended on Oct. 15, residents of Sitio
Kumayot in Barangay Anonang heard an explosive sound like a
thunderclap. Villagers watched in horrified disbelief as the ground
cracked open and, with smoke and the stench of sulphur spreading, one
side started to rise.
The emerging wall of rock and earth missed by a
hairline the toilet of baker Menecia Bautista Aparecio, 43. “We
will be living forever in fear, being so close to the fault line,”
said Aparecio, who fears returning to her home and now bakes her “pan
Bisaya” or “pan kinamot,” a local bread, in the village chapel.
The rock face, about three meters high and two kilometers long,
raised fears among villagers that more cracks would appear on the
ground and swallow them up.
Scientists, who may declare a 300-meter
permanent danger zone around the fault, described the appearance of
the ground rupture as a “eureka” moment in their search for what
they have long suspected was an active earthquake fault in the area.
Government scientists said the appearance of the yet unnamed
fault, which does not exist on the country’s map of fault lines,
triggered the powerful earthquake in Central Visayas.
“We are 100
percent sure that this is the generator (of the earthquake),”
Teresito Bacolcol told GMA 7 as he noted that the rock face appeared
near the quake’s epicenter at the boundary of Sagbayan and
Catigbian towns. “When we saw (the fault), eureka! This is it.”
Bacolcol led a team from the Philippine Institute of Volcanology
and Seismology (Phivolcs), which inspected the rock face last Monday.
“We recommend that no structures should be built on top of a fault
and within the five-meter buffer zone on both sides of the
fault,” Phivolcs director Renato Solidum told The STAR. He also
urged the local government of Bohol to revise its land use policy
around the fault. -Philstar
Geologists
from the Philippine Institute of Volcanology and Seismology
(Phivolcs) found “ground zero” or the fault that triggered the
devastating magnitude 7.2 earthquake.
The discovery on Monday
confirmed the existence of a previously unknown fault in western
Bohol. The Oct. 15 earthquake claimed around 200 lives and caused
major infrastructure damage, including Spanish-era churches in Bohol
and Cebu. Immediately after the earthquake, Phivolcs said the tremor
was caused by the movement of the East Bohol Fault.
The epicenter,
first reported as Carmen town, was later adjusted to the general area
between Sagbayan and Catigbian towns in north central Bohol based on
the distribution of aftershocks.
Geologists found a 5-kilometer
surface rupture that extended from barangay Anonang in Inabanga town
to barangay New Anonang in Buenavista town. “That fault motion
caused the earthquake,” Renato Solidum, director of Phivolcs told
ABS-CBN News Channel’s Talkback yesterday morning.
The ground
rupture pushed the ground upward from two to three meters, cutting
through mountains, roads and possibly settlement areas. Phivolcs
teams are still studying the extent of the fault line which could
extend 100 kilometers or longer.
Meanwhile,
aftershocks recorded by Phivolcs indicate a general distribution from
north Bohol to the offshores of Dalaguete, Alcoy and Boljoon towns in
southern Cebu.
The data was plotted on a map by Jessie Alaivar
Floren, a private Geographic Informatino System expert in Cebu. Aside
from structural damage, residents in southern Cebu towns of Alegria
and Badian and Carcar City have complained that ground water turned
to “milo” brown.
“The earthquake may have disturbed the
clay-limestone land formations in these areas, affecting their water
table and underground water channels,” said Jun Lucero, senior
geologist of the DENR Mines and Geosciences Bureau (MGB). Lucero told
Cebu Daily News that they are now checking reports of possible
liquefaction in several areas in Cebu and Bohol.
Severe liquefaction
could result in the sinking or submersion of lands, he said.
Areas near the river and those reclaimed from the sea are more prone
to liquefaction, Lucero said. Structures in reclaimed areas, he said,
should have stronger foundations and must use materials that can
withstand strong ground shaking and liquefaction. -Inquirer
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