Related Experiment Video
Updated: Aug 6, 2026
07:58
Data Processing Methods for 3D Seismic Imaging of Subsurface Volcanoes: Applications to the Tarim Flood Basalt
Published on: August 7, 2017
Time-resolved seismic tomography detects magma intrusions at Mount Etna
D Patanè1, G Barberi, O Cocina
1Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Catania, Piazza Roma, 2, 95123, Catania, Italy. patane@ct.ingv.it
Science (New York, N.Y.)
|August 12, 2006
Summary
Mount Etna
Area of Science:
- Volcanology and Geophysics
- Seismological Studies of Volcanic Activity
Background:
- Mount Etna's continuous volcanic and seismic activity provides a unique natural laboratory.
- Understanding magma intrusion dynamics is crucial for eruption forecasting.
Purpose of the Study:
- To detect elastic parameter variations using tomography before and during the 2002-2003 flank eruption of Mount Etna.
- To investigate the origin and movement of magma associated with volcanic activity.
Main Methods:
- Repeated three-dimensional seismic tomography was employed.
- Analysis focused on P- to S-wave velocity ratios to identify anomalies.
Main Results:
- Distinct anomalous volumes with low P- to S-wave velocity ratios were identified.
- These anomalies correlated with the intrusion of volatile-rich basaltic magma.
- Magma intrusion was observed to occur shortly before the eruption onset.
Conclusions:
- Four-dimensional tomography effectively reveals magma intrusion dynamics.
- Time-lapse seismic tomography offers a robust method for volcano monitoring.
- This approach enhances short- and mid-term forecasting of explosive volcanic activity.
