Abstract Fireballs are infrequently recorded by seismic sensors on the ground. If recorded, they usually reported as one-off events. This study is first bulk analysis of largest single fireball data set, observed Desert Fireball Network (DFN) in Australia period 2014–2019. The DFN typically observes fireballs from cm-m scale impactors. We identified 25 time series Australian National Seismograp...

[1] Uppermost mantle seismic structure below the Southern Alps in South Island, New Zealand, is investigated by teleseismic P wave travel time residual inversion. The three-dimensional tomographic images show a near-vertical, high-velocity (2–4%) structure in the uppermost mantle that directly underlies thickened crust along the NNESSW axis of the Southern Alps. The center of the high-velocity ...

[1] We analyze the early aftershock activity of the 2004 mid-Niigata earthquake, using both earthquake catalog data and continuous waveform recordings. The frequencymagnitude distribution analysis of the Japan Meteorological Agency (JMA) catalog shows that the magnitude of completeness of the aftershocks changes from values around 5.0, immediately after the main shock, to about 1.8, 12 hours la...

Figure 1. Locations and names of three ocean-bottom seismographs (OBS) used to locate events and NOAA-PMEL’s bottom-pressure recorder (BPR). All located earthquakes are shown as green dots. Purple star indicates location of water-column anomaly as recorded during OBS deployments. Lower right figure shows outline of 1998 flow (Embley et al., 1999) compared with location of 1994 seismicity. Lower...

Induced seismicity due to fluid injection, including hydraulic fracturing, is an increasingly common phenomenon worldwide; yet, the mechanisms by which fracturing causes fault activation remain unclear. Here we show that preexisting fracture networks are instrumental in transferring pressures larger faults on dynamic rupture occurs. Studies of fracturing-induced North America have often used ob...

Abstract The landslide in West Tandikek Nagari, Padang Pariaman Regency, 2009 was triggered by an earthquake that claimed hundreds of lives and buried several villages. Losses caused landslides Nagari should be minimized studying the causes symptoms landslides. Disaster mitigation efforts must carried out to anticipate mitigate losses due so impacts can overcome. These disaster actions identify...