Table 4 Volcanic deposits found in the Ceboruco stratigraphic record associated with different volcanic phenomena
From: Ceboruco hazard map: part I - definition of hazard scenarios based on the eruptive history
Volcanic phenomena | Eruptive record | Data of Ceboruco volcanic deposits | Deposits of reference for simulations | |||||
|---|---|---|---|---|---|---|---|---|
# | Events | Units | Axis distribution | Lengths (km) | Area (km2) | Thickness | ||
Tephra fallout | 7 | 1870 eruption | 1 | NE | 400 | > 10 cm | 1870 ash fall | |
Jala Plinian eruption | 6 | NE | 560 | > 50 cm | P1 unit | |||
Lava flows | 8 | Andesitic composition | 5 | all directions (N-W-S) | 4–12 | 5.3–10.5 | 10 m - 40 m | Ceboruco lava flow |
Dacitic composition | 3 | 7–7,7 | 7–23 | 60 m - 100 m | 1870 lava flow | |||
Pyroclastic flows | 4 | Jala Plinian eruption | 4 | N and SW | > 15 | cm to m | P2 and P3 units | |
Pyroclastic surge | 4 | Jala Plinian eruption | 3 | N and SW | up to 20 | cm | S2 unit | |
1870 eruption | 1 | N-NE | ~ 1 | cm | S3 unit (Jala eruption) | |||
Lahars | 4 | Hyperconcentrated | 3 | N and SW | up to 10 | cm to m | All deposits (volume of main units) | |
Debris-flows | 1 | N and SW | cm to m | |||||