San Venanzo volcano
Maar 466 m / 1529 ft
Italy, 42.85°N / 12.28°E
Current status: (probably) extinct (0 out of 5)
Italy, 42.85°N / 12.28°E
Current status: (probably) extinct (0 out of 5)
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San Venanzo volcano eruptions: None during the past 10,000 years
Less than 2.58 million years ago (Pleistocene)
Latest nearby earthquakes
| Time | Mag. / Depth | Distance/Location | ||
| Sat, 31 Jul 2021 (GMT) (2 earthquakes) | ||||
| 31 Jul 2021 14:54:55 GMT | 1.4 10.8 km | 45 km (28 mi) Italy: 5 Km E Campello Sul Clitunno (PG) | ||
| 31 Jul 2021 09:18:10 GMT | 1.7 10.2 km | 45 km (28 mi) 18 km southeast of Foligno, Provincia di Perugia, Umbria, Italy | ||
| Fri, 30 Jul 2021 (GMT) (2 earthquakes) | ||||
| 30 Jul 2021 18:30:46 GMT | 1.0 9.3 km | 33 km (21 mi) Italy: 3 Km N Castel Ritaldi (PG) | ||
| 30 Jul 2021 03:50:08 GMT | 2.2 5.1 km | 39 km (24 mi) 17 km east of Perouse, Provincia di Perugia, Umbria, Italy | ||
| Thu, 29 Jul 2021 (GMT) (1 earthquake) | ||||
| 29 Jul 2021 02:27:33 GMT | 1.1 7.5 km | 21 km (13 mi) Italy: 1 Km NE Massa Martana (PG) | ||
Background
The San Venanzo complex consists of the San Venanzo maar and the Pian di Celle tuff ring, both part of the Umbria-Latium ultra-alkaline district. The tuff ring is also associated with two spatter cones and a scoria cone. This complex of vents lies within the Tiber Valley Graben, where magmatism is believed to be a result of extension that began during the Pliocene (Stoppa, 1996). Early on, the eruption was explosive, producing pyroclastic flows and dry lapilli surges covering an area of about 0.15 km2; later eruptive behavior was dominated by lava flows. Block collapse and debris flows led to the formation of the steep inner crater walls. The tuffs of both San Venanzo and Pian di Celle are calcitic to carbonatitic in composition, and have been dated at about 265 +/- 3 ka (Stoppa, 1996; Stoppa and Sforna, 1995).---
Smithsonian / GVP volcano information
See also: Sentinel hub | Landsat 8
