Isanotski Volcano
Updated: Apr 19, 2024 13:36 GMT -
Stratovolcano 2446 m / 8,025 ft
United States, Aleutian Islands, 54.77°N / -163.72°W
Current status: normal or dormant (1 out of 5)
United States, Aleutian Islands, 54.77°N / -163.72°W
Current status: normal or dormant (1 out of 5)
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Isanotski volcano eruptions: unknown, no recent eruptions
Latest nearby earthquakes
| Time | Mag. / Depth | Distance / Location | |||
| Apr 16, 11:24 pm (Anchorage) | 1.8 12 km | 28 km (18 mi) to the SE |  Bering Sea, 31 mi southeast of Unimak Island, Aleutians East, Alaska, United States | Info | |
| Saturday, April 13, 2024 GMT (1 quake) | |||||
| Apr 13, 07:42 am (Anchorage) | 1.9 13 km | 27 km (17 mi) to the SE | 35 km SSW of False Pass, Alaska | Info | |
| Friday, April 12, 2024 GMT (1 quake) | |||||
| Apr 11, 04:20 pm (Anchorage) | 1.7 9.7 km | 29 km (18 mi) to the SE | 36 km SSW of False Pass, Alaska | Info | |
| Thursday, April 11, 2024 GMT (2 quakes) | |||||
| Apr 10, 11:58 pm (Anchorage) | 2.0 14 km | 26 km (16 mi) to the SE | 34 km SSW of False Pass, Alaska | Info | |
| Apr 10, 09:47 pm (Anchorage) | 1.5 14 km | 26 km (16 mi) to the SE | 34 km SSW of False Pass, Alaska | Info | |
| Saturday, April 13, 2024 GMT (1 quake) | |||||
| Apr 12, 08:23 pm (Anchorage) | 1.3 19 km | 12 km (7.4 mi) to the W | 32 km WSW of False Pass, Alaska | Info | |
Background
Rugged pinnacles form the summit of the deeply eroded Isanotski stratovolcano, locally known as Ragged Jack. Isanotski is at the center of an E-W-trending group of three volcanoes on eastern Unimak Island. Four poorly documented historical eruptions were noted in the 18th and 19th centuries. However, Miller et al. (1998) considered that some or all of these eruptions could have been from neighboring Shishaldin volcano and that historical eruptions of Isanotski must be considered unlikely, given the extreme degree of erosional dissection.---
Smithsonian / GVP volcano information
Isanotski Volcano Photos
The chain of volcanoes on Unimak, from left to right: Roundtop Mountain, Isanotski, Pogromni and Shishaldin. (Photo: marcofulle)
Whereas Shishaldin is a superb example of a young, symmetric stratovolcano, the much older Isanotski is irregular and deeply eroded. (Photo: marcofulle)
Latest satellite images
