A5047461229- earthquake and tectonic studies
- Earthquake Detection and Analysis
- High-pressure geophysics and materials
- Seismology and Earthquake Studies
- Geological and Geophysical Studies Worldwide
- Geological and Geochemical Analysis
- Geophysics and Gravity Measurements
- Earthquake and Tsunami Effects
- Coastal and Marine Dynamics
- Geological and Tectonic Studies in Latin America
- Landslides and related hazards
- Methane Hydrates and Related Phenomena
- Reservoir Engineering and Simulation Methods
- Geology and Paleoclimatology Research
- Inertial Sensor and Navigation
- Disaster Management and Resilience
- Ship Hydrodynamics and Maneuverability
- GNSS positioning and interference
- Respiratory Support and Mechanisms
- Acoustic Wave Phenomena Research
- Underwater Acoustics Research
- Ocean Waves and Remote Sensing
- Hearing Loss and Rehabilitation
- melanin and skin pigmentation
- Ovarian function and disorders
University of Chile
2015-2024
University of Michigan
2024
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2022
Abstract The 2015 M w 8.3 Illapel, Chile earthquake is the latest megathrust event on central segment of that subduction zone. It generated strong ground motions and a large (up to 11 m runup) tsunami which prompted evacuation more than 1 million people in first hours following event. Observations during recent earthquakes suggest these phenomena can be associated with rupture different parts megathrust. deep portion generates shaking while slow, slip shallow fault responsible for tsunami....
ABSTRACT We present the largest optical photometry compilation of gamma-ray bursts (GRBs) with redshifts (z). include 64813 observations 535 events (including upper limits) from 28 February 1997 to 18 August 2023. also a user-friendly web tool grbLC which allows users visualize photometry, coordinates, redshift, host galaxy extinction, and spectral indices for each event in our database. Furthermore, we have added Gamma-ray Coordinate Network (GCN) scraper that can be used collect data by...
BACKGROUND: Experimental evidence to disprove the belief that emergency contraception with levonorgestrel (LNG) prevents pregnancy by interfering post‐fertilization events is lacking. Here we determined effect of post‐coital and pre‐ovulatory administration LNG on fertility ovulation, respectively, in Cebus monkey. METHODS: To determine fertility, 0.75 mg or vehicle were administered orally s.c. once twice within first 24 h after mating occurring very close time ovulation. Females became...
A large seismic gap lies along northern Chile and could potentially trigger a M w ~ 8.8–9.0 megathrust earthquake as pointed out in several studies. The April 1, 2014, Pisagua broke the middle segment of megathrust. Some slip models suggest that it ruptured mainly from depth 30 to 55 km dip over 180 length, reaching magnitude 8.1–8.2. southern segments are still unbroken; thus, there is area generate > 8.5 with strong tsunami. To better understand effects source parameters on impact tsunami...
Early inhabitants along the hyperarid coastal Atacama Desert in northern Chile developed resilience strategies over 12,000 years, allowing these communities to effectively adapt this extreme environment, including impact of giant earthquakes and tsunamis. Here, we provide geoarchaeological evidence revealing a major tsunamigenic earthquake that severely affected prehistoric hunter-gatherer-fisher ~3800 years ago, causing an exceptional social disruption reflected contemporary changes...
Melanocytes are dendritic cells located in the skin and mucosae that synthesize melanin. Some infections induce hypo- or hyperpigmentation, which is associated with activation of Toll-like receptors (TLRs), especially TLR4. Candida albicans an opportunist pathogen can switch between blastoconidia hyphae forms; latter invasion. Our objectives this study were to ascertain whether C. induces pigmentation melanocytes process dependent on TLR activation, as well relating antifungal activity...
Abstract Many efforts have been made to quickly estimate the maximum runup height of tsunamis associated with large earthquakes. This is a difficult task because time it takes construct an accurate tsunami model using real‐time data from source. It possible database potential seismic sources and their corresponding priori. However, such models are generally based on uniform slip distributions thus oversimplify knowledge earthquake Here we show how predict any source analytic solution that...
Research Article| May 01, 2019 Slip Distribution of the 1985 Valparaíso Earthquake Constrained with Seismic and Deformation Data Francisco Bravo; Bravo aFaculty Physical Mathematical Sciences, National Seismological Center, University Chile, Blanco Encalada 2002, Santiago, fbravo@csn.uchile.cl, pkoch@csn.uchile.cl, sebastian@csn.uchile.cl Search for other works by this author on: GSW Google Scholar Pablo Koch; Koch Sebastian Riquelme; Riquelme Mauricio Fuentes; Fuentes bGeophysics...
Abstract Tsunamis have often been treated as an isolated phenomena from the earthquake itself. In tsunami modeling, seafloor deformation is generated earthquake. That copied into sea surface, and then, propagated over ocean. On other hand, rupture velocities earthquakes are in span of 1.5–2.5 km/s; therefore, it safe to approximate propagation instantaneous relative propagation. However, this not necessarily true for all earthquakes. Several types large slow or nonregular earthquakes, such...
A general method of solution for the runup evolution and some analytical results concerning a more bathymetry than canonical sloping beach model are presented. We studied theoretically water wave elevation generated on continuous piecewise linear bathymetry, by solving analytically shallow equations in 1+1 dimensional case. Non-horizontal segments assumed we develop an specific matrix propagator scheme, similar to ones used propagation elastic seismic fields layered media, obtain exact...
In this work, the problem of tsunamis generated by underwater landslides is addressed. Two new solutions are derived in framework linear shallow water equations and potential wave theory, respectively. Those analytical (1 + 1D) another semi-analytical (2 1D). The 1 1D model considers a solid body sliding over sloping beach at constant speed, 2 landslide that moves velocity on flat bottom. solution checked numerically using different finite scheme. examines kinematic geometric features ocean...
We present a theoretical solution for the water wave elevation along shoreline and closed formula is derived runup distribution in 2+1 dimensional (2 spatial + 1 temporal) linear case. An integral transform method used to solve shallow equations sloping beach model extended coastline. At large regional scale, this simple bathymetry gives good approximation seafloor geometry Chilean subduction zone. In bidimensional problem, special cases, we found an analytic expression that includes...
Abstract Often, tsunami “sources” have been treated as a quasistatic problem. Initial studies demonstrated that, for earthquake rupture velocities in the span of 1.5–3 km/s, kinematic and static part can be separately. However, very slow 0.1–1 km/s not included analytical or numerical modeling. Here, we calculated efficiency, extending Kajiura’s definition different models. We that velocity cannot neglected events, is, slower than 0.5 km/s. also examined relation magnitude, velocity,...
Bone is the most frequent site of metastasis in breast cancer. This causes destructive osteolytic lesions. To achieve to bone, cancer cells must proliferate a new microenvironment, arrest on extracellular matrix and invade. Breast progress invasive processes only if they destroy bone with assistance osteoclasts. In this work, we present data suggesting that MCF-7 cells, an estradiol receptor–positive cell line exhibits modest capacity, presence soluble factors secreted by osteogenic SaOS-2....
Earth and Space Science Open Archive This work was has been accepted for publication in Seismological Research Letters. Version of RecordESSOAr is a venue early communication or feedback before peer review. Data may be preliminary. Learn more about preprints. preprintOpen AccessYou are viewing the latest version by default [v1]Tsunami Efficiency due to Very Slow EarthquakesAuthors Sebastian Riquelme iD Mauricio Fuentes See all authors RiquelmeiDCorresponding AuthorUniversity...
Abstract. Despite the occurrence of several large earthquakes during last decade, Chile continues to have a great tsunamigenic potential. This arises as consequence amount strain accumulated along subduction zone that runs parallel its long coast, and distance from trench coast no more than 100 km. These conditions make it difficult implement real-time tsunami forecasting. issues local warnings based on preliminary estimations hypocenter location magnitude seismic sources, combined with...
Research Article| May 22, 2019 Tsunami Hazard Evaluation in the Coquimbo Region Using Nonuniform Slip Distribution Sources Mauricio Fuentes Serrano; Serrano aDepartment of Geophysics, Faculty Physical and Mathematical Sciences, University Chile, Avenue Blanco Encalada 2002, Santiago 8370449, mauricio@dgf.uchile.clmiguel.medina@dgf.uchile.clmatias.mocanu@gmail.com Search for other works by this author on: GSW Google Scholar Sebastián Riquelme Muñoz; Muñoz bNational Seismological Center,...
An analytical solution is derived concerning the linear run-up for any given initial wave generated over a sloping bathymetry. Due to simplicity of formulation, complex transformations are unnecessary, hence shoreline motion directly obtained in terms wave. This result supports not only maximum invariance between and nonlinear theories but also time evolution velocity, exhibiting good agreement with theory. The present formulation allows quantifying numerically from customized waveform,...
Abstract. In Chile, Tsunami Early Warning relies on a precomputed set of scenarios for places near the tsunami generation zone. These are non-realistic and computed from uniform constant slip over rupture surface, because short reaction time local authorities to manage threat. Here, we present new methodology that allows quasi-real modelling using finite fault model inversion evaluate threat levels. A linear approximation at first order terms shallow water wave equations turns into numerical...