IEPT RAS

Magma extrusion, lava dome growth, dome collapse, and associated pyroclastic flow hazards are among the important volcanological studies. Volcán de Colima is one of the most active volcanoes in North America. It is located in the western part of the Trans-Mexican volcanic belt at 3,860 m.

More“Models of lava dome growth at Volcán de Colima in Mexico”

Rotational seismology is a relatively new area of science. Rotational movements can be caused by earthquakes, explosions or other causes. Rotational seismology could be applied in a wide range of seismology disciplines, including strong-motion and broadband seismology, earthquake engineering, earthquake physics, seismic instrumentation, and seismic hazards. The figure shows how the various phases of an earthquake can be easily determined by using rotational sensors. Of particular interest are the anomalously large rotational movements recorded in the near zone.

More“Rotational Seismology: Review of Achievements and Outlooks”

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.