La Reforma Volcano
Updated: 30. Apr. 2024 06:02 GMT -
Caldera 1300 m / 4265 ft
Mexico, 27.51°N / -112.39°W
Aktueller Status: (wahrscheinlich) erloschen (0 von 5)
Mexico, 27.51°N / -112.39°W
Aktueller Status: (wahrscheinlich) erloschen (0 von 5)
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Ausbrüche des La Reforma: None during the past 10,000 years
Less than few million years ago (Pleistocene)
Letzte Erdbeben in der Nähe
Uhrzeit | Mag. / Tiefe | Entfernung / Ort | |||
25. Apr. 00:57 (Mazatlan) | 3.8 17 km | 12 km südwestlich | Baja California Sur, Mexico I FELT IT | Info | |
Dienstag, 16. April 2024 GMT (1 Beben) | |||||
16. Apr. 00:56 (Hermosillo) | 3.3 6 km | 27 km nördlich | Mexico: 47 km al NORTE de SANTA ROSALIA, BCS | Info |
Beschreibung
The early Pleistocene La Reforma caldera lies along the Gulf of California immediately east of Tres Vírgenes volcano and SE of the late-Pleistocene El Aguajito caldera. The roughly 10-km-wide caldera contains basaltic, andesitic, and dacitic lava flows, and rhyolitic lava domes. A prominent arcuate caldera rim extends from La Reforma along the NW coast to near Punta Las Cuevas on the SE coast. The age of the caldera was determined by the K-Ar method to be between 1.6 and 1.4 million years old (Ma). A 1.09 +/- 0.11 Ma age was obtained on a ring-fracture lava dome. Andesitic lava flows were erupted on the flanks of the caldera both before and after caldera formation.---
Source: Smithsonian / GVP volcano information