Kilauea Daily Update for 9/13/07

Current Kilauea status from HVO:

Kilauea Daily Update issued Sep 13, 2007 09:46 HST Volcanic-Alert Level WATCH – Aviation Color Code ORANGE
Report prepared by the Hawaiian Volcano Observatory (HVO):

Activity Summary: The 7/21 eruption continues to supply an open lava channel that overflowed at several points within 1 km (0.6 mile) of the vent in the last day, producing several small flows, all less than 1 km (0.6 miles) in length. The `a`a flow along the southern margin is currently the most visible point of growth since the last report, and continues to show minor expansion near and northeast of Kupaianaha.

Hazard Summary: There are no immediate threats directly from lava flows. A publication detailing the current and potential future hazards posed by this eruption is available at http://pubs.usgs.gov/of/2007/1264/.

Vent areas are hazardous and conditions can change rapidly. Access to the 7/21 eruption site in the Kahauale`a Natural Area Reserve is closed (see http://www.state.hi.us/dlnr/chair/pio/HtmlNR/07-N076.htm). Lava flows advancing through vegetation are hazardous and can produce fire and methane explosions that propel chunks of lava and rock several feet into the air.

Last 24 hours at 7/21 eruption site: The vent continued to supply a full and active lava channel about 1 km (0.6 miles) long. Channel overflows produced scattered small flows and toes of lava to the north, all less than a few hundred meters (several hundred feet) in length. The heightened near-vent activity has effectively captured the supply and stalled advancement of the most easterly (distal) end of the flowfield. The current effusion is producing minor lobe advancements only to the east and south margins, near Kupaianaha. The recent flow activity continues to contribute to the thickness and breadth of the flow field, but not its length.

Last 24 hours at Pu`u `O`o crater: The webcam continues to show lots of fume by day but no incandescence overnight. The tiltmeter on the north flank of Pu`u `O`o shows slow steady deflation, losing 0.8 microradians since yesterday’s update. Seismic tremor levels remain low.

Last 24 hours at Kilauea summit: Kilauea’s summit tilt is continuing a trend of slow deflation, losing 0.6 microradians. Summit seismicity remains low. Just a few small earthquakes were recorded on the volcano’s south flank.

Pavlof Daily Update for 9/13/07

Current Pavlof status from AVO:

Thursday, September 13, 2007 12:10 PM AKDT (2010 UTC)

PAVLOF VOLCANO (CAVW#1102-03-)
55°24′57″ N161°53′24″ W, Summit Elevation 8261 ft (2518 m)
Current Aviation Color Code: ORANGE
Current Volcano Alert Level: Watch

The eruption of Pavlof continues. Seismic activity continues to fluctuate over levels consistent with those observed during the past week. Satellite views continue to show persistent thermal anomalies at the volcano. A partly clear view by satellite last night showed a steam plume to ~20,000 feet above sea level, otherwise views have been obscured by clouds. A brief view of Pavlof by the web camera in Cold Bay showed no steam plume this morning.

If activity should increase in intensity, larger ash clouds that could affect higher-flying aircraft may be produced. The most immediate ground hazard in the vicinity of the volcano includes light ash fall on nearby communities. Previous historical eruptions from Pavlof caused only a few millimeters (about 1/10th of an inch) of ash to fall on King Cove, Nelson Lagoon, Cold Bay, and Sand Point. Mudflows in drainages from the flanks of the volcano, and lava flows and avalanching of hot debris on the upper reaches of the volcano are also of concern in the uninhabited areas around the volcano. Satellite and seismic data and eyewitness observations suggest most of the surface lava activity is occurring on the southeast sector of the steep-sided volcano; this suggests that the Pacific Ocean side of the volcano is at most risk from avalanching hot debris.

At this time, we expect this eruption to follow the pattern of previous eruptions. The last eruption of Pavlof began in September 1996 and consisted of a several-month-long series of ash explosions, lava-fountaining, and lava-flow production. Ash clouds reached as high as 30,000 ft asl on one occasion. However, most ash clouds were below 20,000 ft asl. Prior to 1996, Pavlof erupted in 1986 sending ash as high as 49,000 ft asl on at least one occasion. A hazard assessment for Pavlof and the Emmons Lake volcanic center is available on the web at http://www.avo.alaska.edu/pdfs/SIR2006-5248.pdf

Cleveland Daily Update for 9/13/07

Current Cleveland status form AVO:

Thursday, September 13, 2007 12:10 PM AKDT (2010 UTC)

CLEVELAND VOLCANO (CAVW#1101-24-)
52°49′20″ N169°56′42″ W, Summit Elevation 5676 ft (1730 m)
Current Aviation Color Code: YELLOW
Current Volcano Alert Level: Advisory

Clouds obscured views of the volcano by satellite and web camera today.

AVO continues to monitor the volcano closely with satellite imagery as weather allows. The lack of a real-time seismic network at Cleveland means that AVO is unable to track local earthquake activity related to volcanic unrest. Short-lived explosions of ash that could exceed 20,000 ft above sea level can occur without warning and may go undetected on satellite imagery.

Cleveland Daily Update for 9/13/07

Current Cleveland status form AVO:

Thursday, September 13, 2007 12:10 PM AKDT (2010 UTC)

CLEVELAND VOLCANO (CAVW#1101-24-)
52°49′20″ N169°56′42″ W, Summit Elevation 5676 ft (1730 m)
Current Aviation Color Code: YELLOW
Current Volcano Alert Level: Advisory

Clouds obscured views of the volcano by satellite and web camera today.

AVO continues to monitor the volcano closely with satellite imagery as weather allows. The lack of a real-time seismic network at Cleveland means that AVO is unable to track local earthquake activity related to volcanic unrest. Short-lived explosions of ash that could exceed 20,000 ft above sea level can occur without warning and may go undetected on satellite imagery.

Mount St. Helens Daily Update for 9/13/07

Current Mount St. Helens status from CVO:

Thursday, September 13, 2007 09:08 PDT (Thursday, September 13, 2007 16:08 UTC)

MOUNT ST. HELENS UPDATE
Current Volcanic- Alert Level WATCH; Aviation Color Code ORANGE: Growth of the new lava dome inside the crater of Mount St. Helens continues, accompanied by low rates of seismicity, low emissions of steam and volcanic gases, and minor production of ash. During such eruptions, changes in the level of activity can occur over days to months. The eruption could intensify suddenly or with little warning and produce explosions that cause hazardous conditions within several miles of the crater and farther downwind. Small lahars could suddenly descend the Toutle River if triggered by heavy rain or by interaction of hot rocks with snow and ice. These lahars pose a negligible hazard below the Sediment Retention Structure (SRS) but could pose a hazard along the river channel upstream.

Potential ash hazards: Wind forecasts from the National Oceanic and Atmospheric Administration (NOAA), coupled with eruption models, show that any ash clouds rising above the crater rim today would drift to the west.

Potential ash hazards to aviation: Under current eruptive conditions, small, short-lived explosions may produce ash clouds that exceed 30,000 feet in altitude. Ash from such events can travel 100 miles or more downwind.

Recent observations: The sky is clear at the volcano, although fog persists in the valley. From the USFS camera at Johnston Ridge, dust plumes can be seen in the crater and drifting above the crater rim due to wind remobilizing old ash and other fine-grained material. This is a common occurrence when we have stretches of hot dry weather has we have had this past week. Low-level earthquake activity and rates of deformation continue to accompany the extrusion of the lava dome.

Long Valley Daily Update for 9/13/07

Current Long Valley status from LVO:

Long Valley Daily Update issued Sep 13, 2007 09:05 PDT Volcanic-Alert Level NORMAL – Aviation Color Code GREEN
The realtime computer system located one small earthquake in the vicinity of Long Valley caldera since the last update at 8:30 AM on September 12. This was a M=1.4 event located just west of Lake Crowley at 8:28 AM on the 13th. Elsewhere, occasional activity continues in the area just south of Yosemite National Park (24 miles WSW of Mammoth Lakes) with yet another M=2.2 earthquake. This one at 1:10 AM on the 13th.

Ol Doiny Lengai Update

From Frederick A. Belton’s Mountain OF God site:

September 2007: Leander Ward reports on the status of the eruption as seen by his staff at a camp north of Lengai on the lower slopes of Gelai-” The day befor yesterday (Sept 11) was the most significant eruption there has been, aside from perhaps the first day, with much rumbling and more fire visible at night as well as huge ash plumes, although this is secondhand information as I was away from the location. But it scared my staff to the point that they evacuated against our wishes. As of Sept 13 there is still significant black smoke but it has subsided considerably.”

Stromboli Daily Update for 9/13/07

Current Stromboli status from INGV, translated via Google:

Official notice of 13-9-2007
Modernization to the hours 12,00 premises
(the hour ones specify to you in the text are all GMT)

In the day odierna on the Island of Stromboli 2 units of staff INGV are present that operate
within four fields of monitoring: Volcanology, Sismologia, Geochemistry and Deformations.

The data supplied in last the 24 hours from the nets of monitoring of the deformations of the ground (nets GPS and Topographical) istallate on the island do not show meaningful variations regarding the trend record i to you previous days.

The images of the infrared television camera mail on the Peak over the Fossa, in last the 24 hours, have shown one optimal visibility of the craterica area from the hours 17:22 of day 12.
The explosive activity has been produced mainly from following the mouths:
- in the northern portion of the craterica area two mouths have produced outbreaks of rough material (lapilli and bombs). The mouth mails on the northern hem of the area craterica has produced to outbreaks with one frequency of 2-3/h and height <80 m while mouth mails in inner position regarding the previous one has produced outbreaks with one medium height and frequency 5-6/h < 150 m (i project of some outbreaks have exceeded i 200 m).
- in the portion sporadic activity of launch of brandelli centers them a mouth has shown one of
it washes.
- in the southern portion of the craterica area a mouth has produced medium 3 esplosioni/h of ash diluted of medium height < 150 m before being taken in cargo from i twenty dominant.
The thermal television camera of 190 quota s.l.m and the visible one of quota 400, in last the 24, do not have shown changes meant to you regarding the previous days neither of the area they of the Sciara centers of Fire before, neither of northern the part sommita them of the volcano the second one. From the television camera visible of quota 400, they have been observed the more energetic ash outbreaks and the activity of degassamento of the craterica area.

Colima Daily Update for 9/13/07

Current Colima status from UCOL, translated via Google:

It sights on, Col., 13 of September of 2007.
Report of the recent volcanic activity
(It reports 12:00 Hours

The Government of the State, through the State Unit of Civil defense Sights on, informs that they follow without new features about seismic activity in the cone of the Fire Volcano of Sights on in last the twenty-four hours, period in which, most of the time, he has remained dimmed preventing the visibility of exhalations or fumarolas; also, he indicates that report of damages or affectation in the adjacent populations is not had.

In the occasion of the rain storm, which is reported that to the storm clouds light rains and sporadic electrical storms in the top of the volcano are added, forces to remember to the population that avoids the permanence in bordering ravines, before the possibility that they register lahares (mud flows).

On the other hand, it continues the restriction for the sobreflights that do not have scientific aims or of civil defense, and is prohibited the permanence of people other people’s to these activities in ravines of the volcano.

In permanent coordination with the State Unit of Civil defense Jalisco, the Government of the State of Sights on is pending of monitorear the activity of the volcano in real time; this way, he counts himself on opportune information to be able to respond before any contingency and to guarantee the security of the population, as it is the interest of the governor Jesus Silverio Cavazos Ceballos.

In addition, one works in the preventive programs to maintain informed to the citizens on the evolution into the volcanic activity, and to avoid that alarm by rumors is generated.

Also constant communication with the communitarian brigade that has formed with inhabitants of the town of the Becerrera, to those who exists has become qualified in the self-protection with respect to the natural disasters. Also, permanent contact with the personnel of the military team of Marijuana, the Becerrera stays, farm the Wild boar, as well as with elements of public security of the State, Comala and Civil defense of Cuauhtémoc.

They have been continuing the same recommendations established for months, in which it is indicated that who are or live in zone of risk, follow the indications that this organism transmits through mass media; it is necessary to emphasize that the zone of exclusion of activities for the states of Jalisco and Colima is of 7,5 kilometers from the top of the volcano on the channels of ravines. The radius of preventive alert remains in 11.5 kilometers from the top of the volcano, which includes the populations of Marijuana, and the Becerrera in the state of Sights on, and Causentla, Brotherhood of Tonila, Atenguillo, the Saucillo, the Fresnal, the Funnel, Juan Barragán, the Males, the Summer pasture and the Borbollón in Jalisco.

The permanence in ravines must be avoided the Fire, the Cordobán, San Antonio and Monte Grande, in It sights on, and the Dead, the Tuna, Santa Ana, the Cafecito, the Sand and Beltrán-Peach tree in Jalisco.

* Note: You can daily consult the information of the volcanic activity in the following electronic direction http://www.colima-estado.gob.mx/2006/seguridad/indvolcan.php

It sights on, Col 13 of September of 2007

Colima Daily Update for 9/13/07

Current Colima status from UCOL, translated via Google:

It sights on, Col., 13 of September of 2007.
Report of the recent volcanic activity
(It reports 12:00 Hours

The Government of the State, through the State Unit of Civil defense Sights on, informs that they follow without new features about seismic activity in the cone of the Fire Volcano of Sights on in last the twenty-four hours, period in which, most of the time, he has remained dimmed preventing the visibility of exhalations or fumarolas; also, he indicates that report of damages or affectation in the adjacent populations is not had.

In the occasion of the rain storm, which is reported that to the storm clouds light rains and sporadic electrical storms in the top of the volcano are added, forces to remember to the population that avoids the permanence in bordering ravines, before the possibility that they register lahares (mud flows).

On the other hand, it continues the restriction for the sobreflights that do not have scientific aims or of civil defense, and is prohibited the permanence of people other people’s to these activities in ravines of the volcano.

In permanent coordination with the State Unit of Civil defense Jalisco, the Government of the State of Sights on is pending of monitorear the activity of the volcano in real time; this way, he counts himself on opportune information to be able to respond before any contingency and to guarantee the security of the population, as it is the interest of the governor Jesus Silverio Cavazos Ceballos.

In addition, one works in the preventive programs to maintain informed to the citizens on the evolution into the volcanic activity, and to avoid that alarm by rumors is generated.

Also constant communication with the communitarian brigade that has formed with inhabitants of the town of the Becerrera, to those who exists has become qualified in the self-protection with respect to the natural disasters. Also, permanent contact with the personnel of the military team of Marijuana, the Becerrera stays, farm the Wild boar, as well as with elements of public security of the State, Comala and Civil defense of Cuauhtémoc.

They have been continuing the same recommendations established for months, in which it is indicated that who are or live in zone of risk, follow the indications that this organism transmits through mass media; it is necessary to emphasize that the zone of exclusion of activities for the states of Jalisco and Colima is of 7,5 kilometers from the top of the volcano on the channels of ravines. The radius of preventive alert remains in 11.5 kilometers from the top of the volcano, which includes the populations of Marijuana, and the Becerrera in the state of Sights on, and Causentla, Brotherhood of Tonila, Atenguillo, the Saucillo, the Fresnal, the Funnel, Juan Barragán, the Males, the Summer pasture and the Borbollón in Jalisco.

The permanence in ravines must be avoided the Fire, the Cordobán, San Antonio and Monte Grande, in It sights on, and the Dead, the Tuna, Santa Ana, the Cafecito, the Sand and Beltrán-Peach tree in Jalisco.

* Note: You can daily consult the information of the volcanic activity in the following electronic direction http://www.colima-estado.gob.mx/2006/seguridad/indvolcan.php

It sights on, Col 13 of September of 2007