The 1968 andesitic lateral blast eruption at Arenal volcano, Costa Rica
نویسندگان
چکیده
منابع مشابه
Steady downslope movement on the western flank of Arenal volcano, Costa Rica
[1] The edifice of a volcano is a unique deformational environment, dependent not just on active volcanic processes but also on its composition, structure, and morphology. We measured the deformation of Volcán Arenal, Costa Rica, using interferograms constructed from both ALOS and RadarSat data between 2005 and 2009. The volcano’s western flanks are moving downslope at an angle of ∼55° below th...
متن کاملMonitoring change in volcanic interiors using coda wave interferometry: Application to Arenal Volcano, Costa Rica
[1] Multiply scattered waves are a new tool for monitoring changes in the earth’s subsurface. In this study we use the air pressure and displacement recorded at the Arenal Volcano to detect temporal changes. The pressure pulses emitted by the volcano are associated with a complex displacement signal of overlapping coda waves. By deconvolving the ground motion with the air pressure for different...
متن کاملNew Constraints on Source Processes of Volcanic Tremor at Arenal Volcano, Costa Rica, Using Broadband Seismic Data
Broadband seismic data recorded 2.3 km from the active vent of Arenal Volcano, Costa Rica, provide new constraints on tremor source processes. Arenal's tremor contains as many as seven harmonics, whose frequencies vary temporally by up to 75 percent, from initial values of 1.9 Hz for the first peak immediately following explosive eruptions to 3.2-3.5 Hz several minutes later. We infer that gas ...
متن کاملMale and mosquito larvae survey at the Arenal-Tempisque irrigation project, Guanacaste, Costa Rica.
A monitoring of male and larvae of mosquitoes was conducted during 1991-1994, at the Irrigation Project in Arenal-Tempisque, Guanacaste, Costa Rica. CDC CO2-baited traps were used to collect adults of mosquitoes and dips were used for immatures of culicids. A total of 1,480 larvae and 1,129 males of culicids were identified resulting in, Aedes with 6 species, Anopheles, Mansonia and Psorophora ...
متن کاملPilgrimages and Persistent Social Memory in Spite of Volcanic Disasters in the Arenal Area, Costa Rica
Ancient Costa Ricans in the Arenal area exhibited extraordinary persistence in landscape use and social memory, in spite of repeated catastrophes caused by explosive volcanic eruptions. The Cañales village on the south shore of Lake Arenal was struck by two large explosive eruptions during the Arenal phase (500 b.c.–a.d. 600). Following ecological recovery, the village was reoccupied after each...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Volcanology and Geothermal Research
سال: 2006
ISSN: 0377-0273
DOI: 10.1016/j.jvolgeores.2006.03.035