Ischia

Photo of this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 40.73°N
  • 13.897°E

  • 789 m
    2588 ft

  • 211030
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Ischia.

The Global Volcanism Program has no Weekly Reports available for Ischia.

The Global Volcanism Program has no Bulletin Reports available for Ischia.

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.

Eruptive History


There is data available for 24 Holocene eruptive periods.


Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1302 Jan 18 1302 Mar Confirmed   Historical Observations Arso
1290 (?) Unknown Confirmed   Radiocarbon (corrected) FBT tephra
0820 ± 300 years Unknown Confirmed   Radiocarbon (corrected) Near Arso, FiT tephra
0540 ± 150 years Unknown Confirmed   Radiocarbon (corrected) Montagnone-Moschiata area, BCT tephra
0295 ± 10 years Unknown Confirmed   Historical Observations Vateliero, Molara-Cava Nocelle, Rotaro
0145 (?) Unknown Confirmed   Historical Observations
0080 ± 1 years Unknown Confirmed   Historical Observations
[ 0069 ] [ Unknown ] Uncertain    
0040 ± 75 years Unknown Confirmed 3 Radiocarbon (corrected) Near Bosco della Maddalena, Cretaio Tephra
0006 BCE ± 20 years Unknown Confirmed   Historical Observations
0091 BCE Unknown Confirmed   Historical Observations
0200 BCE ± 200 years Unknown Confirmed   Magnetism Ischia Porto (Spiaggia dei Pescatori)
0370 BCE ± 150 years Unknown Confirmed   Magnetism Ischia Porto (San Pietro)
0470 BCE (?) Unknown Confirmed   Historical Observations Bosco dei Conti and Fondo Ferraro ?
0490 BCE ± 150 years Unknown Confirmed   Magnetism Case Balestrieri?, Cava Nocelle?
0700 BCE ± 75 years Unknown Confirmed   Tephrochronology Costa del Lenzuolo
0930 BCE ± 150 years Unknown Confirmed   Radiocarbon (corrected) SE of Selva del Napolitano, CaT tephra
1480 BCE ± 300 years Unknown Confirmed   Magnetism Castiglione
2350 BCE ± 1400 years Unknown Confirmed   Potassium-Argon Costa Sparaina
2700 BCE ± 1750 years Unknown Confirmed   Tephrochronology Punta della Cannuccia
3050 BCE ± 1000 years Unknown Confirmed   Potassium-Argon Cantariello
3580 BCE ± 300 years Unknown Confirmed   Radiocarbon (corrected) Submarine SE flank (Secca d'Ischia)
3880 BCE ± 200 years Unknown Confirmed   Magnetism Zaro, Marecocco, Spiaggia degli Inglesi
7550 BCE ± 2400 years Unknown Confirmed   Potassium-Argon Selva del Napolitano, Piedmonte

Deformation History


There is data available for 1 deformation periods. Expand each entry for additional details.


Deformation during 1990 - 2003 [subsidence; Observed by Leveling]

Start Date: 1990 Stop Date: 2003 Direction: subsidence Method: Leveling
Magnitude: Unknown Spatial Extent: Unknown Latitude: Unknown Longitude: Unknown

Remarks: Leveling surveys reveal subsidence of the northern and southern flanks of the Mt. Epomeo resurgent block. The deformation is likely due to crack closure of the hydorthermal system.

Vertical displacements recorded along the Coastline (blue), Borbonic line (green) and Casamicciola-Chiummano line (black) from 1990 to 2003. Numbers are the benchmarks.

From: Sepe et al. 2007.


Reference List: Sepe et al. 2007.

Full References:

Sepe, V., S. Atzori, and G. Ventura, 2007. Subsidence due to crack closure and depressurization of hydrothermal systems: a case study from Mt. Epomeo (Ischia Island, Italy). Terra Nova, 19, p. 127-132..

Emission History


There is no Emissions History data available for Ischia.

Photo Gallery


The Ischia volcanic complex forms a 6 x 9 km island at the western side of the Bay of Naples. The tip of the island of Procida, ENE of Ischia, is visible at the left in this Space Shuttle image. Tectonism has influenced volcanic activity at Ischia, and its high point (the dark-colored area at the center of the island) is a volcanic horst composed of ignimbrite deposits associated with Pleistocene caldera formation. During the Holocene, a series of pumiceous tephras, tuff rings, lava domes, and lava flows were erupted.

NASA Space Shuttle image ISS002-E-8200, 2001 (http://eol.jsc.nasa.gov/).
See title for photo information.

Smithsonian Sample Collections Database


The following 52 samples associated with this volcano can be found in the Smithsonian's NMNH Department of Mineral Sciences collections, and may be availble for research (contact the Rock and Ore Collections Manager). Catalog number links will open a window with more information.

Catalog Number Sample Description Lava Source Collection Date
NMNH 100087 Andesine Basalt -- --
NMNH 111123-1250 Trachyte -- --
NMNH 111123-1251 Trachyte -- --
NMNH 111123-1252 Trachyte -- --
NMNH 111123-1253 Ciminite Trachyte -- --
NMNH 111123-927 Trachyte -- --
NMNH 111123-938 Trachyte -- --
NMNH 116568-488 Sodalite Trachyte ROTARO --
NMNH 116568-489 Sodalite Trachyte ROTARO --
NMNH 116568-494 Latite MOLARA --
NMNH 35857 Trachyte -- --
NMNH 36282 Hyalo Liparite -- --
NMNH 36320 Sodalite Trachyte -- --
NMNH 36321 Trachyte -- --
NMNH 36323 Trachyte -- --
NMNH 36324 Sodalite Trachyte -- --
NMNH 36325 Trachyte -- --
NMNH 36326 Trachyte -- --
NMNH 38336 Trachyte -- --
NMNH 72994 Trachyte -- --
NMNH 72995 Trachyte -- --
NMNH 72996 Trachyte -- --
NMNH 72997 Trachyte -- --
NMNH 72998 Trachyte -- --
NMNH 91993 Arsoite -- --
NMNH 92000 Trachyte -- --
NMNH 99129 Trachyte -- --
NMNH 99130 Andesine Basalt -- --
NMNH 99131 Andesine Basalt -- --
NMNH 99132 Andesine Basalt -- --
NMNH 99133 Andesine Basalt -- --
NMNH 99134 Andesine Basalt -- --
NMNH 99135 Andesine Basalt -- --
NMNH 99136 Andesine Basalt -- --
NMNH 99137 Andesine Basalt -- --
NMNH 99138 Andesine Basalt -- --
NMNH 99139 Andesine Basalt -- --
NMNH 99140 Trachyte -- --
NMNH 99141 Trachyte -- --
NMNH 99142 Andesine Basalt -- --
NMNH 99143 Andesine Basalt -- --
NMNH 99144 Andesine Basalt -- --
NMNH 99145 Andesine Basalt -- --
NMNH 99146 Andesine Basalt -- --
NMNH 99147 Andesine Basalt -- --
NMNH 99148 Andesine Basalt -- --
NMNH 99149 Trachyte -- --
NMNH 99150 Andesine Basalt -- --
NMNH 99151 Andesine Basalt -- --
NMNH 99152 Andesine Basalt -- --
NMNH 99153 Andesine Basalt -- --
NMNH 99154 Andesine Basalt -- --

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