The July–August 2000 seismic swarms at Campi Flegrei Volcanic Complex, Italy

A least squares database approach for SAR interferometric data

“…After two major crisis in the years 1969-1972 and 1982-1984, which caused a total maximum uplift of about 3.5 m [12], this constantly monitored area is in the course of the last years mostly subsiding, at a rate of a few millimeters per month. However, short-term uplift episodes still occur, accompanied by seismic events: the last deformation inversion took place between March and July 2000, with a total maximum uplift of 4 cm [13]. A SAR intensity image of the Phlegrean Fields is shown in Fig.…”

“…According to [15,Eq. (15)], the SVD problem is then formulated as follows: (13) with the unknown mean velocities, also represented in Fig. 7 Notice that the formulation of the problem in terms of the deformation velocities is equivalent to the formulation in terms of the deformation values except for a scale factor, namely the temporal interval over which each deformation is considered.…”

A reappraisal of shear wave splitting parameters from Italian active volcanic areas through a semiautomatic algorithm

“…Since January 1985, the area has undergone a phase of general subsidence interspersed by minor short-duration uplifts which occurred on 1989, 1994, 2000, and 2004. A characteristic of these movements is that seismicity always accompanies the uplift phases, while the subsidence occurs aseismically (Saccorotti et al 2001). On July-August 2000, the ground deformation reached a maximum value of about 4 cm, and a swarm of low-magnitude VT earthquakes occurred in a period of 3 months.…”

WEIRD - Real Use Cases and Applications for the WiMAX Technology

“…The Istituto Nazionale di Geofisica e Vulcanologia-Osservatorio Vesuviano (INGV-OV) is a research institute having the task to monitor two high-risk densely populated active volcanic areas: Vesuvio and Campi Flegrei (near Napoli, southern Italy). The Campi Flegrei volcanic area has been characterized in the last years by slow ground deformation accompanied by low-energy swarm-type seismic activity [5]. The seismic monitoring is realized by means of a Permanent Seismic Network.…”