We investigated the 1-D velocity structure of the Earth's crust in the NW Dinarides with inversion of arrival times from earthquakes. The obtained velocity models give a better insight into the crustal structure and show velocity variations among different parts of the study area. In addition to general structural implications and a potential for improving further work, the results of our study can also be used for routine earthquake location and for detecting errors in seismological bulletins.

The historical development of the Geophysical Service of Austria, comprising the national geomagnetic, gravimetric and seismological services as well as the Applied Geophysics Section located at the Zentralanstalt für Meteorologie und Geodynamik (ZAMG) in Vienna in Austria, is presented. Achievements, changes and challenges of the department from its modest beginning in 1851 until 2020 are described, including the Conrad Observatory.

The work demonstrates how seismic networks installed in the Alps can be used for country-wide real-time monitoring of rockslide activity. We suggest simple methods that allow us to detect, locate, and characterize rockslides using the seismic signals they generate. We developed an automatic procedure to locate rockslides with kilometer accuracy over hundreds of kilometers of distance. Our findings highlight how seismic networks can help us to understand the triggering of rockslides.