Abstract
Volcanic edifices are constructed by a combination of erupted material and internal growth. We use the L-band satellite ALOS to produce InSAR measurements at Tungurahua Volcano, Ecuador. We find a maximum of 17.5 cm of uplift on the upper western flank between December 2007 and March 2008, coincident with an eruption in February 2008. The deformation can be modeled using an ellipsoidal or sill-like source within the edifice. The models require an elongated aspect ratio with a length of 4-6 km. The intruded volume of 1.2 × 106 m3 is roughly equivalent to the bulk erupted volume of 1.5 × 106 m3 and together the values are roughly equal to the long-term magma flux. The question remains whether this uplift is permanent, thus contributing to the internal growth of the edifice, or temporary, in which case the magma will be released in a future eruption.
| Original language | English (US) |
|---|---|
| Article number | L21302 |
| Journal | Geophysical Research Letters |
| Volume | 37 |
| Issue number | 21 |
| DOIs | |
| State | Published - 2010 |
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ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Geophysics
Cite this
Stratovolcano growth by co-eruptive intrusion : The 2008 eruption of Tungurahua Ecuador. / Biggs, J.; Mothes, P.; Ruiz, M.; Amelung, Falk C; Dixon, T. H.; Baker, S.; Hong, S. H.
In: Geophysical Research Letters, Vol. 37, No. 21, L21302, 2010.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Stratovolcano growth by co-eruptive intrusion
T2 - The 2008 eruption of Tungurahua Ecuador
AU - Biggs, J.
AU - Mothes, P.
AU - Ruiz, M.
AU - Amelung, Falk C
AU - Dixon, T. H.
AU - Baker, S.
AU - Hong, S. H.
PY - 2010
Y1 - 2010
N2 - Volcanic edifices are constructed by a combination of erupted material and internal growth. We use the L-band satellite ALOS to produce InSAR measurements at Tungurahua Volcano, Ecuador. We find a maximum of 17.5 cm of uplift on the upper western flank between December 2007 and March 2008, coincident with an eruption in February 2008. The deformation can be modeled using an ellipsoidal or sill-like source within the edifice. The models require an elongated aspect ratio with a length of 4-6 km. The intruded volume of 1.2 × 106 m3 is roughly equivalent to the bulk erupted volume of 1.5 × 106 m3 and together the values are roughly equal to the long-term magma flux. The question remains whether this uplift is permanent, thus contributing to the internal growth of the edifice, or temporary, in which case the magma will be released in a future eruption.
AB - Volcanic edifices are constructed by a combination of erupted material and internal growth. We use the L-band satellite ALOS to produce InSAR measurements at Tungurahua Volcano, Ecuador. We find a maximum of 17.5 cm of uplift on the upper western flank between December 2007 and March 2008, coincident with an eruption in February 2008. The deformation can be modeled using an ellipsoidal or sill-like source within the edifice. The models require an elongated aspect ratio with a length of 4-6 km. The intruded volume of 1.2 × 106 m3 is roughly equivalent to the bulk erupted volume of 1.5 × 106 m3 and together the values are roughly equal to the long-term magma flux. The question remains whether this uplift is permanent, thus contributing to the internal growth of the edifice, or temporary, in which case the magma will be released in a future eruption.
UR - http://www.scopus.com/inward/record.url?scp=78149455431&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78149455431&partnerID=8YFLogxK
U2 - 10.1029/2010GL044942
DO - 10.1029/2010GL044942
M3 - Article
AN - SCOPUS:78149455431
VL - 37
JO - Geophysical Research Letters
JF - Geophysical Research Letters
SN - 0094-8276
IS - 21
M1 - L21302
ER -