Pico

Photo of this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 38.47°N
  • 28.4°W

  • 2351 m
    7711 ft

  • 382020
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Pico.

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

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

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 4 Holocene eruptive periods.


Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
[ 1963 Dec 15 (in or before) ] [ Unknown ] Uncertain 0   Off NW coast
1720 Jul 10 1720 Dec (?) Confirmed 2 Historical Observations SE flank (400 m)
1718 Feb 1 1718 Dec 15 ± 5 days Confirmed 2 Historical Observations SE flank (200 m), NW flank (1200 m)
1562 Sep 21 (?) 1564 (?) Confirmed 2 Historical Observations East flank (800 m)

Deformation History


There is data available for 3 deformation periods. Expand each entry for additional details.


Deformation during 2006 - 2009 [Subsidence; Observed by InSAR]

Start Date: 2006 Stop Date: 2009 Direction: Subsidence Method: InSAR
Magnitude: Unknown Spatial Extent: Unknown Latitude: 38.000 Longitude: -28.000

Map of terrain displacement PS-InSAR vertical velocity overlaid to a shaded relief of Pico and Faial islands. Estimates of both ascending and descending data sets are merged.

From: Catalao et al. 2011.


Reference List: Catalao et al. 2011.

Full References:

Catalao J, Nico G, Hanssen R, Catita C, 2011. Merging GPS and atmospherically corrected InSAR data to map 3-D terrain displacement velocity. IEEE Transactions on Geoscience and Remote Sensing, 49(6), 2354-2360.

Deformation during 2006 - 2009 [Subsidence; Observed by GPS, InSAR]

Start Date: 2006 Stop Date: 2009 Direction: Subsidence Method: GPS, InSAR
Magnitude: Unknown Spatial Extent: Unknown Latitude: 38.000 Longitude: -28.000

Remarks: Slump on the southeastern flank of Pico Island

Horizontal and vertical displacement rates within collapse area derived from GPS and synthetic aperture radar (SAR) data acquired from 2001?2006 and 2006?2009, respectively. Distinct colors for various rates of average vertical displacements are in mm/yr. Negative values and positive values are for downward and upward movements, respectively.

From: Hildenbrand et al. 2012.


Reference List: Hildenbrand et al. 2012.

Full References:

Hildenbrand, A., F. O. Marques, J. Catalão, C. M. S. Catita, and A. C. G. Costa, 2012. Large-scale active slump of the southeastern flank of Pico Island, Azores. Geology, 40, p. 939-942..

Deformation during 1998 Jul - 1998 Jul [Subsidence; Observed by InSAR]

Start Date: 1998 Jul Stop Date: 1998 Jul Direction: Subsidence Method: InSAR
Magnitude: 3.000 cm Spatial Extent: Unknown Latitude: Unknown Longitude: Unknown

Remarks: Deformation due to Mw 6.1 Azores earthquake on 9 July 1998

Observed differential co-seismic interferograms. One colour fringe represents 28.3 mm of range change. Panels (a) through ( f ): track 52, frame 2835; (a): 920609?980925; (b): 930316?980925; (c): 951109?980925; (d ): 951110?980925; (e): 951214?980925, ( f ): 951215?980925. Panels (g) and (h): track 281, frame 2835; (g): 951230?981011, (h): 951231? 981011.

From: Catita et al. 2005.


Reference List: Catita et al. 2005.

Full References:

Catita, C., Feigl, K. L., Catalão, J., Miranda, J. M., & Victor, L. M., 2005. InSAR time series analysis of the 9 July 1998 Azores earthquake. International Journal of Remote Sensing, 26(13), 2715-2729.

Emission History


There is no Emissions History data available for Pico.

Photo Gallery


Pico stratovolcano occupying the western end of Pico Island rises across a strait SE of neighboring Fayal Island (foreground). Pico is superimposed on an older linear volcano with numerous flank cones that forms most of the eastern side of the 48-km-long island. The conical Pico volcano is capped by a 500-m-wide summit crater that is overtopped by a small steep-sided cone visible at the left side of the summit. Historical eruptions have been restricted to the flanks of Pico volcano itself and to the SE-trending rift zone.

Photo by Rick Wunderman, 1997 (Smithsonian Institution).
See title for photo information.
Pico volcano, the highest in the Azores, is located across a narrow 6-km-wide channel SE of Fayal Island. From this direction, the 2351-m-high stratovolcano appears to be a symmetrical cone, but it lies at the far western end of an elongated chain of flank cones that forms a roughly 800-m-high ridge extending ESE across Pico Island. Permanent fumaroles are located near a small cone filling the summit crater, but all historical eruptions have occurred from flank vents.

Photo by Rick Wunderman, 1997 (Smithsonian Institution).
See title for photo information.

Smithsonian Sample Collections Database


The following 1 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 116691-15 Ankaramite -- 1 Aug 1980

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