Contact | RSS | EN | DE | EL | ES | FR | IT | RU

Fernandina volcan

Mise à jour: 29 nov.. 2022 13:54 GMT -
Shield volcano 1476 m / 4,842 ft
Galápagos Islands, Ecuador, -0.37°S / -91.55°W
Condition actuelle: en vigilance - niveau agité (2 sur 5)
Last update: 10 déc. 2021 (fumarolic activity)
The Fernandina caldera seen on July 4, 1968, about three weeks after a major explosive eruption that was followed by collapse of the caldera floor. Collapse occurred incrementally and asymmetrically, ranging up to about 350 m at the SE end of the caldera, which contains the caldera lake. Photo by Tom Simkin, 1968 (Smithsonian Institution).
The Fernandina caldera seen on July 4, 1968, about three weeks after a major explosive eruption that was followed by collapse of the caldera floor. Collapse occurred incrementally and asymmetrically, ranging up to about 350 m at the SE end of the caldera, which contains the caldera lake. Photo by Tom Simkin, 1968 (Smithsonian Institution).

Montrer carte interactive
Style éruptif tipique: Effusive, basaltic fissure eruptions
Eruptions du volcan Fernandina: 2020, 2018, 2017, 2009

Derniers séismes proches

No recent earthquakes

Introduction

Fernandina, the most active of Galápagos volcanoes and the one closest to the Galápagos mantle plume, is a basaltic shield volcano with a deep 5 x 6.5 km summit caldera. The volcano displays the classic "overturned soup bowl" profile of Galápagos shield volcanoes. Its caldera is elongated in a NW-SE direction and formed during several episodes of collapse. Circumferential fissures surround the caldera and were instrumental in growth of the volcano.
Reporting has been poor in this uninhabited western end of the archipelago, and even a 1981 eruption was not witnessed at the time. In 1968 the caldera floor dropped 350 m following a major explosive eruption. Subsequent eruptions, mostly from vents located on or near the caldera boundary faults, have produced lava flows inside the caldera as well as those in 1995 that reached the coast from a SW-flank vent. Collapse of a nearly 1 cu km section of the east caldera wall during an eruption in 1988 produced a debris-avalanche deposit that covered much of the caldera floor and absorbed the caldera lake.
---
Source: Smithsonian / GVP volcano information


See also: Sentinel hub | Landsat 8 | NASA FIRMS
jeu., 18 nov. 2021, 01:53

Fernandina volcano (Galápagos Islands): fumarolic activity

Spectrograms of the FER2 station on the SE flank, time (vertical) vs. frequency (horizontal) comparing 16 Nov and 17 Jun (image: (image: IGEPN)
The local volcano observatory reported that a fumarolic activity has been detected in the volcano's crater area during the past few days as well as a small number of periods of volcanic tremor that may be likely related to fumarolic activity, another typical sign for the impending eruption. ... Read all
dim., 14 nov. 2021, 06:01

Fernandina volcano (Galápagos Islands): significant ground deformation and possible activity, first since Jan 2020

Ground deformation data during Feb 20-Oct 21, yellow-to-red color indicates inflation in the NE area while blue color shows deflation in the W-SW slopes (image: IGEPN)
During the period between Feb 2020 and October 2021, the local volcano observatory Instituto Geofísico recorded a significant ground deformation within the volcano's caldera. ... Read all
Découvrez notre app gratuite !
Volcanoes & Earthquakes - new app for Android
Android | Version iOS

Plus sur VolcanoDiscovery

Support us - Help us upgrade our services!

We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources.
We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal or Online credit card payment).

Planned features:
  • Improved multilanguage support
  • Tsunami alerts
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Design upgrade
  • Detailed quake stats
  • Additional seismic data sources
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Copyright: VolcanoDiscovery ou autres sources indiquées.
Utilisation des documents: Les textes, les images et les vidéos de ce site internet sont protégées par copyright. Toute reproduction et tout usage sans accord préalable ne sont pas autorisés. Si vous désirez acquérir pour certains documents (photos, vidéos, textes ou autres) le droit de reproduction, d'édition et, plus généralement, de toute utilisation destinée à un usage public, qu'elle soit commerciale ou pas, vous êtes priés de nous contacter.
Volcanoes & Earthquakes
VolcanoDiscovery Home
Volcans | Séismes | Photos | Actualités | App
Adventure & Study Travel
Tours to Volcanoes and Volcanic Areas: walking tours, photo tours, study tours
Voyages |
Get our newsletter!
Company info
Contact | Mentions légales | Terms & conditions
Follow us
Follow us on facebook Follow us on Instagram Follow us on Twitter Visit our Youtube channel
EN | DE | EL | ES | FR | IT | RU
VolcanoDiscovery GmbH, Germany, Reg. nr.: HRB 103744, EU Tax Id: DE 310 395 322 owned and created by
Dr. Tom Pfeiffer, volcanologist, volcano photographer, tour organizer member of
IAVCEI
Volcanological Society
Ecotourism Greece
Insured by R+V
VolcanoDiscovery © 2004- All Rights Reserved | Privacy