Seismology, Rotational, Complexity

The Torsional Response of Civil Engineering Structures during Earthquake from an Observational Point of View

“…For example, technologies are based on mechanical sensors, solid-state sensors, inclinometers, fiber-optic sensors, gyroscope-based sensors, and ring laser-based sensors. The most important features to make rotation sensors useful for seismology or earthquake engineering is their sensitivity to resolve weak-to-strong rotation motion (from around 0.01 rad/s at short distance to the seismic sources to 10 −6 μrad/s for a tele-seismic event) and the ability to record the uncoupled rotation [ 17 ]. The seismological community has been aware of the importance of this field for some time now.…”

Automated Quality Assessment of Interferometric Ring Laser Data

“…In seismology, rotational motion observations supplement the conventional observation of translational motions and extend the scope of insight granted by seismic observations (e.g., [ 1 , 2 , 3 , 4 ]). Array derived rotations, based on classical translational seismometer array measurements (e.g., [ 5 , 6 , 7 ]) and recent efforts to derive rotational motions using high-rate GNSS measurements [ 8 ], were complemented by rotational sensors in the course of the last decades (e.g., [ 9 , 10 ]).…”

Monitoring Local Earthquakes in Central Italy Using 4C Single Station Data

“…The Gingerino instrument right after his commissioning permitted several seismological studies from distant earthquakes [8,9] to storm generated noise [10] and finally local earthquakes in [11] i.e., the topic of this paper. The theory underneath rotations in seismology is largely explored in literature [12,13] and new processing studies are available [14,15] as well as new instruments [16]. For this reason, we avoid retreating to the mathematical derivation of fundamental equations for data interpretation.…”