[1] The activity at Mauna Loa volcano, Hawaii, is characterized by eruptive fissures that propagate into the Southwest Rift Zone (SWRZ) or into the Northeast Rift Zone (NERZ) and by large earthquakes at the basal decollement fault. In this paper we examine the historic eruption and earthquake catalogues, and we test the hypothesis that the events are interconnected in time and space. Earthquake...

[1] Tsunami earthquakes, shallow events that produce larger tsunamis than expected given their surface wave magnitudes (Ms), typically have long durations and a source spectrum depleted in short period energy. Seven cases of underthrusting tsunami earthquakes provide information on the rupture processes, but little constraint on geographic distribution or frequency. We compare their rupture cha...

The Me?imurje region (North Croatia), situated between the Drava and Mura rivers with a slightly elevated hilly area, can be generally characterized as low-seismicity area. However, macroseismic observations from historical recent earthquakes indicate that some localities in this are more prone to damage than others. Significant observed higher intensities after of 1738 MLm5.1 (Me?imurje) 1880 ...

The intensity data collected by the U.S. Geological Survey (USGS) “Did You Feel It?” (DYFI) Website (USGS, DYFI; http://earthquake.usgs.gov/earthquakes/dyf i/events/se/ 082311a/us/index.html, last accessed Sept 2011)for theMw 5.8 Mineral, Virginia, earthquake, are unprecedented in their spatial richness and geographical extent. More than 133,000 responses were received during the first week fol...

Three strong earthquakes ruptured the northwest Thessaly area, Central Greece, on 3, 4 and 12 March 2021. Since area did not rupture by in instrumental period of seismicity, it is great interest to understand seismotectonics source properties these earthquakes. We combined relocated hypocenters, inversions teleseismic P-waveforms InSAR data, moment tensor solutions produce three fault models. T...

Abstract This paper presents a joint analysis of instrumental and macroseismic data regarding the 19 July 2019, Greece M w 5.1 earthquake occurred west Athens. ruptured blind, south-dipping normal fault, 23 km WNW center Athens, while its relocated epicentre lies in close vicinity to one 1999 6.0 earthquake. The maximum intensity 2019 mainshock reached IEMS98 = 7.5. Scarce damage intensities up...

Slow earthquakes that occur at subduction zones are distinct from regular earthquakes in terms of their slip behavior. We consider this difference to relate to localized hydration reactions at the plate interface that influence the frictional properties. The results of laboratory friction experiments indicate that simulated serpentine faults are characterized by a low healing rate and large sli...

[1] Large earthquakes can trigger distant earthquakes in geothermal areas. Some triggered earthquakes happen while the surface waves pass through a site, but others occur hours or even days later. Does this prolonged seismicity require a special mechanism to store the stress from the seismic waves that differs from ordinary aftershock mechanisms? These questions have driven studies of long-rang...

Source scaling relations have been obtained for earthquakes in eastern North America and other co'ntinental interiors, and compared with a relation obtained for earthquakes in western North America. The scaling relation for eastern North American earthquakes was constructed from measurements of seismic moment and source duration obtained by the waveform modeling of seismic body waves. The event...

We compare teleseismic P-wave records for earthquakes in the magnitude range from 6.0 to 9.5 with synthetics for a self-similar, ~2 source model and conclude that the energy radiated by very large earthquakes (M,, > 8~) is not self-similar to that radiated from smaller earthquakes (Mw < 81). Furthermore, in the period band from 2 sec to several tens of seconds, we conclude that large subduction...