scholarly journals Reconstructing lava flow emplacement processes at the hot spot‐affected Galápagos Spreading Center, 95 ° W and 92 ° W

2013 ◽  
Vol 14 (8) ◽  
pp. 2731-2756 ◽  
Author(s):  
Tim McClinton ◽  
Scott M. White ◽  
Alice Colman ◽  
John M. Sinton
Keyword(s):  
Lava Flow ◽  
Hot Spot ◽  
Spreading Center ◽  
Lava Flow Emplacement ◽  
Galapagos Spreading Center ◽  
Emplacement Processes

scholarly journals High-resolution surveys along the hot spot-affected Galápagos Spreading Center: 1. Distribution of hydrothermal activity

2008 ◽  
Vol 9 (9) ◽  
pp. n/a-n/a ◽  
Author(s):  
Edward T. Baker ◽  
Rachel M. Haymon ◽  
Joseph A. Resing ◽  
Scott M. White ◽  
Sharon L. Walker ◽  
...  
Keyword(s):  
High Resolution ◽  
Hot Spot ◽  
Hydrothermal Activity ◽  
Spreading Center ◽  
Galapagos Spreading Center

scholarly journals Effects of variable magma supply on mid-ocean ridge eruptions: Constraints from mapped lava flow fields along the Galápagos Spreading Center

2012 ◽  
Vol 13 (8) ◽  
pp. n/a-n/a ◽  
Author(s):  
Alice Colman ◽  
John M. Sinton ◽  
Scott M. White ◽  
J. Timothy McClinton ◽  
Julie A. Bowles ◽  
...  
Keyword(s):  
Lava Flow ◽  
Flow Fields ◽  
Spreading Center ◽  
Magma Supply ◽  
Mid Ocean Ridge ◽  
Galapagos Spreading Center ◽  
Ocean Ridge

High-resolution surveys along the hot spot-affected Galápagos Spreading Center: 2. Influence of magma supply on volcanic morphology

2008 ◽  
Vol 9 (9) ◽  
pp. n/a-n/a ◽  
Author(s):  
Scott M. White ◽  
Jason D. Meyer ◽  
Rachel M. Haymon ◽  
Ken C. Macdonald ◽  
Edward T. Baker ◽  
...  
Keyword(s):  
High Resolution ◽  
Hot Spot ◽  
Spreading Center ◽  
Magma Supply ◽  
Galapagos Spreading Center

LAVA FLOW EMPLACEMENT PROCESSES ON MARS: INSIGHTS FROM MAPPING MARTIAN LAVA FLOW FIELDS

2020 ◽  
Author(s):  
David A. Crown ◽  
◽  
Daniel C. Berman ◽  
Stephen P. Scheidt ◽  
Scott C. Mest
Keyword(s):  
Lava Flow ◽  
Flow Fields ◽  
Lava Flow Emplacement ◽  
Emplacement Processes

scholarly journals Eruptive timing and 200 year episodicity at 92°W on the hot spot-influenced Galapagos Spreading Center derived from geomagnetic paleointensity

2014 ◽  
Vol 15 (6) ◽  
pp. 2211-2224 ◽  
Author(s):  
Julie A. Bowles ◽  
Alice Colman ◽  
J. Timothy McClinton ◽  
John M. Sinton ◽  
Scott M. White ◽  
...  
Keyword(s):  
Hot Spot ◽  
Spreading Center ◽  
Galapagos Spreading Center

scholarly journals Lava flow hazard at Fogo Volcano, Cabo Verde, before and after the 2014–2015 eruption

2016 ◽  
Vol 16 (8) ◽  
pp. 1925-1951 ◽  
Author(s):  
Nicole Richter ◽  
Massimiliano Favalli ◽  
Elske de Zeeuw-van Dalfsen ◽  
Alessandro Fornaciai ◽  
Rui Manuel da Silva Fernandes ◽  
...  
Keyword(s):  
Lava Flow ◽  
Emergency Preparedness ◽  
Disaster Response ◽  
Flow Simulations ◽  
Cabo Verde ◽  
Topographic Information ◽  
Lava Flow Hazard ◽  
Before And After ◽  
Lava Flow Emplacement ◽  
Fogo Volcano

Abstract. Lava flow simulations help to better understand volcanic hazards and may assist emergency preparedness at active volcanoes. We demonstrate that at Fogo Volcano, Cabo Verde, such simulations can explain the 2014–2015 lava flow crisis and therefore provide a valuable base to better prepare for the next inevitable eruption. We conducted topographic mapping in the field and a satellite-based remote sensing analysis. We produced the first topographic model of the 2014–2015 lava flow from combined terrestrial laser scanner (TLS) and photogrammetric data. This high-resolution topographic information facilitates lava flow volume estimates of 43.7 ± 5.2 × 106 m3 from the vertical difference between pre- and posteruptive topographies. Both the pre-eruptive and updated digital elevation models (DEMs) serve as the fundamental input data for lava flow simulations using the well-established DOWNFLOW algorithm. Based on thousands of simulations, we assess the lava flow hazard before and after the 2014–2015 eruption. We find that, although the lava flow hazard has changed significantly, it remains high at the locations of two villages that were destroyed during this eruption. This result is of particular importance as villagers have already started to rebuild the settlements. We also analysed satellite radar imagery acquired by the German TerraSAR-X (TSX) satellite to map lava flow emplacement over time. We obtain the lava flow boundaries every 6 to 11 days during the eruption, which assists the interpretation and evaluation of the lava flow model performance. Our results highlight the fact that lava flow hazards change as a result of modifications of the local topography due to lava flow emplacement. This implies the need for up-to-date topographic information in order to assess lava flow hazards. We also emphasize that areas that were once overrun by lava flows are not necessarily safer, even if local lava flow thicknesses exceed the average lava flow thickness. Our observations will be important for the next eruption of Fogo Volcano and have implications for future lava flow crises and disaster response efforts at basaltic volcanoes elsewhere in the world.

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