With the exception of a faint steam-and-gas plume observed on 24 January, no unusual activity at Pagan volcano had been detected in satellite imagery during the previous six weeks. Information Contacts: Dina Venezky, Volcano Hazards Program, U.S. Geological Survey, 345 Middlefield Road, MS 910, Menlo Park, CA 94025, USA (URL: http://volcanoes.usgs.gov/); Emergency Management Office, Commonwealth of the Northern Mariana Islands, PO Box 100007, Saipan, MP 96950, USA (URL: http://www.cnmihsem.gov.mp/); Washington Volcanic Ash Advisory Center, Satellite Analysis Branch (SAB), NOAA/NESDIS E/SP23, NOAA Science Center Room 401, 5200 Auth Rd, Camp Springs, MD 20746, USA (URL: http://www.ospo.noaa.gov/Products/atmosphere/vaac/); Hawai'i Institute of Geophysics and Planetology (HIGP) Thermal Alerts System, School of Ocean and Earth Science and Technology (SOEST), University of Hawai'i, 2525 Correa Road, Honolulu, HI 96822, USA (URL: http://modis.higp.hawaii.edu/). . on 7 April. A six-member team of USGS volcanologists visited the Commonwealth of the Northern Mariana Islands 11-27 May 1992 at the request of the CNMI Office of Civil Defense. More numerous and stronger seismic events preceded the ash eruptions of 7 and 15 March. Whether the moisture in the plume was vented by the volcano or acquired from the atmosphere has not been determined. Researchers camped on the island reported no unusual activity. The NE lobe of these northern flows traveled 1.5 km, covered an area of about 0.2 km2, and contained 2 x 106 m3 of lava. Explosive activity was occurring when they arrived about 0600 and continued through the day, accompanied by booming sounds. On 7 May, the MODIS instrument on the Terra satellite acquired a clear image of Pagan Island with a conspicuous plume of gas and steam drifting W (figure 15). Tephra deposits suggest 4-7 eruptions since May 1981. "The intent of PUFF is to show the position of eruption clouds when satellite image observations are not available, and to use satellite observations, when available, to validate or improve simulations (Searcy and others, 1998)." The eruption apparently reached full intensity almost immediately, and lava flows were noted by residents very soon after the appearance of the ash/scoria column. The Aviation Color Code remained at Yellow and the Volcano Alert Level remained at Advisory. It is the only confirmed active volcano in South Asia, and the only active volcano along a chain of volcanoes from Sumatra to Myanmar. | August "Remeasurements of the distances between two permanent glass reflectors installed in 1983 on the SW flank showed no significant changes in line lengths since 1984. The dominant frequency of the events was 2-5 Hz and their amplitude was 2-3x background. Reference. Thermal anomaly detection in 2012. MODVOLC thermal alerts were triggered several times during this reporting period, mainly in late 2012. A seven-member team of USGS volcanologists visited the CNMI 24 September-6 October at the request of the Office of Civil Defense. Automated forecasting of volcanic ash dispersion utilizing Virtual Globes, Natural Hazards, 51, 2, pp. 2012: January However, it is probable that a single lava flow and one of the tephra layers was produced on 11 June, 1981 (6:6). Corwin G, 1971. The Barren and Narcondam Island, note of Port Blair are volcanic Island (these are the only active volcanoes in India). Information Contacts: R. Moore, USGS; R. Koyanagi, M. Sako, and F. Trusdell, HVO. | October The ash cloud was about 3 km high and extended roughly 40 km. and caused minor ashfall on northern Pagan Island and the surrounding ocean. Eruptive activity from the summit crater continued at North Pagan in June and July with ejection of tephra columns to heights of several kilometers. "Overflights of Pagan by the USN on 16 July and the USGS on 12 September revealed the formation of a new 60-80-m-diameter crater in the center of the old summit crater. The name comes from the alternating pattern of high and low amplitudes written on a revolving-drum seismograph (figure 4). Together with Varanasi, it is considered to be one of the holiest places in India to Hindus, and part of the Char Dham pilgrimage. The largest eruption during historical time took place in 1981 and prompted the evacuation of the sparsely populated island. After that, the Volcanic Alert Level and Aviation Color Code were reduced from Advisory (Yellow) to Unassigned on 22 February 2011. The site is approachable by road from Nilambur Jetty. During the subsequent months (first half of 1993), 30-60-minute bursts of tremor persisted at semi-regular intervals, alternating with low-amplitude tremor lasting several hours. The Transportation Ministry said a flight warning had been issued after the eruption and a local airport had been closed as ash rained down on many areas of the island. In addition, during late September-October 1982, residents of Saipan (roughly 300 km to the S) reported a dark cloud, similar to the one ejected in May 1981, drifting to the S. "The most recent eruptive products were slightly richer in phenocrysts than products of the May 1981 eruption. In 2010, it was reported to have been completely submerged by the rising sea water due to Global warming. Geotherm. 1981 values are from microprobe analyses of a fused sample by John Sinton, University of Hawaii; the analyses of 1925 flows are from Larson and others (1975). Winds were generally low during the survey, but occasional changes affected the height and configuration of the ash column and direction of ashfall. The primary methods of monitoring Pagan are satellite remote sensing and visual observations from the Emergency Management office (based in Saipan), local residents of the islands, and mariners. Catalog number links will open a window with more information. The Aviation Color Code remained at Yellow and the Volcano Alert Level remained at Advisory. A., 2014. The ash has been identified as magmatic, of medium-sand size, and depleted in fines. The Pagan seismograph (PAGV, figure 3) is installed in a thick, concrete World War II bunker that helps absorb noise. Barren Island, the only active volcano in India is also situated in the Nicobar Islands. Information Contacts: D. Subera, US Dept of Interior; N. Banks, CVO. It is thought that other, unobserved eruptive events have also occurred. and drifted 37 km W. Observers on a ship reported that a white plume "with some black" rose 1.8 km (5,700 ft) from the volcano. Some of the islands are friged with coral reefs. Seismicity was also at a low level in early September. Its height was unknown but was believed to be less than 3 km. Scoria fell on the visitors, who also noted a strong odor of sulfur. The earthquakes (approximately 3/day) were strong enough to shake houses, and some were felt by persons out of doors; magnitudes were probably between 3 and 4. In the next two days, amplitudes and number of episodes decreased. Searcy, C., Dean, K., and Stringer, W., 1998. Lithic blocks and juvenile bombs as large as 1 m in diameter were thrown more than 2 km from the summit onto the N flank, and base surge phenomena, evidenced by low-amplitude (4-20 cm) dune and antidune features and preferential upslope tree damage, took place in restricted corridors down to elevations of 200 m on the N and S slopes. . South Pagan is a stratovolcano with an elongated summit containing four distinct craters. 28 September-3 October . The three small volcanic islands are, in north–south sequence, Kita-Iō (San Alexander) Island, Iō Island (Iō-tō; conventionally, Iwo Jima), and Minami-Iō (San Augustino) Island. The first event was felt on Saipan (about 180 km S of Pagan) and Guam (nearly 300 km SSW of Pagan). The bridge refers to both the road bridge and the cantilever railway bridge, though primarily it means the latter. We received no additional information regarding activity at Pagan until April 2009. Weather clouds obscured satellite views. The team observed all of the islands in the chain N of Saipan, installed a new seismic station at the base of frequently active Pagan, remeasured existing EDM networks, mapped the geology of Alamagan, sampled fumaroles and hot springs, and collected rocks and charcoal for radiocarbon dating. Since mid-1993 there have been short bursts of tremor <30 minutes in duration at variable intervals and with amplitudes <10x background. There were no felt earthquakes or noise from the volcano, but occasional sulfur smells wafted through the camp. During the 8-day monitoring period, the lake level dropped regularly at a rate of about 24 mm/day, either because of tidal changes, slow drainage of the lake, water evaporation, or uplift of that part of the island. The teachers have expressed disenchantment over serious ‘administrative’ and ‘academic’ lapses under Director Anju Seth, who was appointed in 2018 and have detailed their grievances in a letter to the Secretary of the Ministry of Education. Eruptions less vigorous than that of 15 May 1981 occurred intermittently from late May 1981 until October 1988. R. Adkerson, COMNAVMARIANAS. The Global Volcanism Program has no maps available for Pagan. On 16 April a diffuse plume drifted 85 km W. USGS raised the Aviation Color Code to Yellow and the Volcano Alert Level to Advisory. Monitoring is done by satellite and ground observers. It is a part of the Indian Union Territory of Andaman and Nicobar Islands, and lies about 138 km northeast of the territory's capital, Port Blair. . No MODVOLC thermal alert for Pagan has been issued for the last 10 years; however, infrequent thermal anomalies from other systems that have less stringent criteria than MODVOLC have been reported. The emission, hotter than its surroundings, drifted NW and quickly dissipated. 17 May, a U.S, oriented about N-S, were active a revolving-drum seismograph ( PAGV, figure )... Award categories and nominees for WWE Slammy Awards and brown smoke Moore R B Sako. The vicinity of Pagan, August 1988 Office of Civil Defense headquarters monitors showed varying amounts of events. Than an hour, and newspapers attributed the activity to Pagan indicate that Volcano! 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