Report on Telica (Nicaragua) — 24 February-1 March 2016

Smithsonian / US Geological Survey Weekly Volcanic Activity Report, 24 February-1 March 2016
Managing Editor: Sally Kuhn Sennert

Please cite this report as:

Global Volcanism Program, 2016. Report on Telica (Nicaragua). In: Sennert, S K (ed.), Weekly Volcanic Activity Report, 24 February-1 March 2016. Smithsonian Institution and US Geological Survey.

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Telica

Nicaragua

12.602°N, 86.845°W; summit elev. 1061 m

All times are local (unless otherwise noted)


INETER reported high micro-seismicity at Telica during 20 February-1 March. Incandescence from the vent on the crater floor increased; lava in the vent was first observed on 25 February and persisted through 1 March. Five gas-and-ash explosions were recorded during 29 February-1 March, generating plumes that rose 300 above the crater and drifted W and SW. The strongest event started at 0819 and produced gas-and-ash emissions for 14 minutes.

Geologic Background. Telica, one of Nicaragua's most active volcanoes, has erupted frequently since the beginning of the Spanish era. This volcano group consists of several interlocking cones and vents with a general NW alignment. Sixteenth-century eruptions were reported at symmetrical Santa Clara volcano at the SW end of the group. However, its eroded and breached crater has been covered by forests throughout historical time, and these eruptions may have originated from Telica, whose upper slopes in contrast are unvegetated. The steep-sided cone of 1061-m-high Telica is truncated by a 700-m-wide double crater; the southern crater, the source of recent eruptions, is 120 m deep. El Liston, immediately SE of Telica, has several nested craters. The fumaroles and boiling mudpots of Hervideros de San Jacinto, SE of Telica, form a prominent geothermal area frequented by tourists, and geothermal exploration has occurred nearby.

Source: Instituto Nicarag├╝ense de Estudios Territoriales (INETER)