IEPT RAS

The problem of estimating the apparent slowness vector  of a plane P-wave generated by a regional seismic event from observations of a small-aperture seismic array is considered in the paper written by A.V. Varypaev and A.F. Kushnir. The case is considered when array sensors are affected by strong non-stationary and non-Gaussian random noise.

The article “Technique of local probabilistic tsunami zonation for near field seismic sources applied to the Bechevinskaya Cove (the Kamchatka Peninsula)”, co-author is A.V. Lander, was published in the journal Natural Hazard (Q2 WoS).

The study was carried out by the staff of IEPT RAS (synthetic catalog of earthquakes), ICT SB RAS (calculation of the heights of tsunamis), IVS FEB RAS (field observations).

The paper “Stability estimates for reconstruction from the Fourier transform on the ball” was published in “Journal of Inverse and Ill-Posed Problems” (Q1 WoS) journal. Doctor of physical and mathematical sciences Novikov R.G. is one of the authors of this article.

The Indo-Burman arc is the boundary between the India and Burma plates, north of the Sumatra–Andaman subduction zone. The existence of active subduction in the Indo-Burman arc is a debatable issue because the Indian plate converges very obliquely beneath the Burma plate. Recent GPS measurements in Bangladesh, Myanmar, and northeast India indicate 13–17 mm/y of plate convergence along a shallow dipping megathrust while most of the strike-slip motion occurs on several steep faults, consistent with patterns of strain partitioning at subduction zones.

The Corsica–Sardinia lithospheric block is traditionally viewed as a region of notoriously low seismicity. Earthquake catalogs report only three moderate earthquakes in the range of magnitudes 5.0–5.1. The scarcity of documented seismicity in the region does not allow for the reliable assessment of the seismic hazard. In this paper, we make an attempt to evaluate the seismic potential of the Corsica–Sardinia region employing the morphostructural zoning (MSZ) that allows for the identification of locations of potential earthquakes.