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Ricardo Garza-Giron

Publications and source records attributed to Ricardo Garza-Giron.

3 recordsLinked to original sources
USGS2024

Preface to the focus section on volcano monitoring in the Americas

From the Andes to the Aleutian Islands, the Americas are rich with volcanism that spans a diverse range of tectonic settings, eruptive styles, levels of activity, and hazards. Over the past 120 yr, the Americas have witnessed catastrophic volcanic eruptions that have significantly impacted nearby populations. Notable events include the 8 May 1902, pyroclastic density current from Mount Pelée in Martinique, which resulted in the loss of over 28,000 lives in Saint‐Pierre, with only one or two survivors (Lacroix, 1904), and the 1985 eruption of Nevado del Ruiz in Colombia, which triggered a lahar and left an estimated...

Seismological Research Letters↗
USGS2023

Solid Earth–atmosphere interaction forces during the 15 January 2022 Tonga eruption

Rapid venting of volcanic material during the 15 January 2022 Tonga eruption generated impulsive downward reaction forces on the Earth of ~2.0 × 10 13 N that radiated seismic waves observed throughout the planet, with ~25 s source bursts persisting for ~4.5 hours. The force time history is determined by analysis of teleseismic P waves and Rayleigh waves with periods approximately <50 s, providing insight into the overall volcanic eruption process. The atmospheric acoustic-gravity Lamb wave expanding from the eruption produced broadband ground motions when transiting land, along with driven and conventional tsunami waves. Atmospheric standing acoustic waves near the source produced oscillatory peak forces as large as 4 × 10 12 N, exciting resonant solid Earth Rayleigh wave motions at frequencies of 3.7 and 4.6 mHz.

Science Advances↗