Jumbo Dome Volcano
Updated: Apr 18, 2024 16:47 GMT -
Lava dome 1369 m / 4491 ft
Eastern Alaska, United States, 63.97°N / -148.69°W
Current status: (probably) extinct (0 out of 5)
Eastern Alaska, United States, 63.97°N / -148.69°W
Current status: (probably) extinct (0 out of 5)
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Jumbo Dome volcano eruptions: None during the past 10,000 years
Less than few million years ago (Pleistocene)
Latest nearby earthquakes
Time | Mag. / Depth | Distance / Location | |||
Apr 16, 06:16 am (Anchorage) | 1.6 30 km | 20 km (13 mi) to the S | 8 km NE of Denali Park, Alaska | Info | |
Saturday, April 13, 2024 GMT (1 quake) | |||||
Apr 13, 02:15 am (Anchorage) | 1.8 6.5 km | 14 km (8.7 mi) to the N | 17 km ENE of Ferry, Alaska | Info | |
Wednesday, April 10, 2024 GMT (1 quake) | |||||
Apr 10, 03:38 pm (Anchorage) | 1.5 0.1 km | 6 km (3.8 mi) to the NW | 18 km E of Ferry, Alaska | Info | |
Friday, April 12, 2024 GMT (1 quake) | |||||
Apr 11, 08:01 pm (Anchorage) | 1.4 99 km | 18 km (10.9 mi) to the SE | 22 km E of Healy, Alaska | Info | |
Monday, April 8, 2024 GMT (1 quake) | |||||
Apr 8, 12:47 am (Anchorage) | 1.4 9 km | 30 km (18 mi) to the SW | 12 km WSW of Healy, Alaska | Info | |
Wednesday, April 17, 2024 GMT (1 quake) | |||||
Apr 16, 04:47 pm (Anchorage) | 1.3 14 km | 12 km (7.6 mi) to the S | 17 km E of Healy, Alaska | Info |
Background
Jumbo Dome is a large cylindrical plug of hornblende andesite 1.6 km long, 1.3 km wide, and 500 m high which intrudes the Devonian Keevy Peak Formation basement and overlying Tertiary Suntrana Formation (AVO, 2005-). Ar/Ar dating by Athey et al. (2006) yielded an age for Jumbo Dome of 1.026 +/- 0.057 Ma.---
Source: Smithsonian / GVP volcano information