Publications
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Earthquake hazard in the New Madrid Seismic Zone remains a concern
There is broad agreement in the scientific community that a continuing concern exists for a major destructive earthquake in the New Madrid seismic zone. Many structures in Memphis, Tenn., St. Louis, Mo., and other communities in the central Mississippi River Valley region are vulnerable and at risk from severe ground shaking. This assessment is based on decades of research on New Madrid earthquake
Authors
A. D. Frankel, D. Applegate, M. P. Tuttle, R. A. Williams
Monitoring lava-dome growth during the 2004–2008 Mount St. Helens, Washington, eruption using oblique terrestrial photography
We present an analysis of lava dome growth during the 2004–2008 eruption of Mount St. Helens using oblique terrestrial images from a network of remotely placed cameras. This underutilized monitoring tool augmented more traditional monitoring techniques, and was used to provide a robust assessment of the nature, pace, and state of the eruption and to quantify the kinematics of dome growth. Eruption
Authors
Jon J. Major, Daniel Dzurisin, Steve P. Schilling, Michael P. Poland
An Examination of Selected Historical Rainfall-Induced Debris-Flow Events within the Central and Southern Appalachian Mountains of the Eastern United States
Generally, every several years, heavy amounts of rainfall trigger a large number of debris flows within the central and southern Appalachian Mountains of the Eastern United States. These types of landslides damage buildings, disrupt infrastructure, and occasionally injure and kill people. One of the first large debris flows was described in Pennsylvania in August 1779. The most destructive event o
Authors
Gerald F. Wieczorek, L. Scott Eaton, Benjamin A. Morgan, R.M. Wooten, M. Morrissey
Catalog of Tephra samples from Kilauea's summit eruption, March-December 2008
The opening of a new vent within Halema'uma'u Crater in March 2008 ended a 26-year period of no eruptive activity at the summit of Kilauea Volcano. It also heralded the first explosive activity at Kilauea's summit since 1924 and the first of eight discrete explosive events in 2008. At the onset of the eruption, the Hawaiian Volcano Observatory (HVO) initiated a rigorous program of sample collectio
Authors
Kelly M. Wooten, Carl R. Thornber, Tim R. Orr, Jennifer F. Ellis, Frank A. Trusdell
Preliminary spreadsheet of eruption source parameters for volcanoes of the world
Volcanic eruptions that spew tephra into the atmosphere pose a hazard to jet aircraft. For this reason, the International Civil Aviation Organization (ICAO) has designated nine Volcanic Ash and Aviation Centers (VAACs) around the world whose purpose is to track ash clouds from eruptions and notify aircraft so that they may avoid these ash clouds. During eruptions, VAACs and their collaborators run
Authors
Larry G. Mastin, Marianne Guffanti, John W. Ewert, Jessica Spiegel
The Lunar Reconnaissance Orbiter Diviner Lunar Radiometer Experiment
The Diviner Lunar Radiometer Experiment on NASA’s Lunar Reconnaissance Orbiter will be the first instrument to systematically map the global thermal state of the Moon and its diurnal and seasonal variability. Diviner will measure reflected solar and emitted infrared radiation in nine spectral channels with wavelengths ranging from 0.3 to 400 microns. The resulting measurements will enable characte
Authors
D. A. Paige, M. C. Foote, B. T. Greenhagen, J. T. Schofield, S. Calcutt, A. R. Vasavada, D. J. Preston, F. W. Taylor, C. C. Allen, K. Snook, B. M. Jakosky, B. C. Murray, Laurence A. Soderblom, B. Jau, S. Loring, J. Bulharowski, N. E. Bowles, I. R. Thomas, M. T. Sullivan, C. Avis, E. M. De Jong, W. Hartford, D. J. McCleese
Geochemical database for the Boulder batholith and its satellitic plutons, Southwest Montana
Geochemical data presented in this report pertain to Cretaceous igneous intrusions of the Boulder batholith and its satellitic plutons in southwest Montana. The geographic area addressed in this compilation is approximately bounded by lats 45.6 deg and 46.7 deg N. and longs 112.75 deg and 111.5 deg W. These data were compiled in order to establish the geologic framework for world-class mineral dep
Authors
Edward A. du Bray, Karen Lund, Robert I. Tilling, Paul Denning, Ed DeWitt
Continuing inflation at Three Sisters volcanic center, central Oregon Cascade Range, USA, from GPS, leveling, and InSAR observations
Uplift of a broad area centered ~6 km west of the summit of South Sister volcano started in September 1997 (onset estimated from model discussed in this paper) and was continuing when surveyed in August 2006. Surface displacements were measured whenever possible since August 1992 with satellite radar interferometry (InSAR), annually since August 2001 with GPS and leveling surveys, and with continu
Authors
Daniel Dzurisin, Michael Lisowski, Charles W. Wicks
The Digital Shoreline Analysis System (DSAS) Version 4.0 - An ArcGIS extension for calculating shoreline change
The Digital Shoreline Analysis System (DSAS) version 4.0 is a software extension to ESRI ArcGIS v.9.2 and above that enables a user to calculate shoreline rate-of-change statistics from multiple historic shoreline positions. A user-friendly interface of simple buttons and menus guides the user through the major steps of shoreline change analysis. Components of the extension and user guide include
Authors
E. Robert Thieler, Emily A. Himmelstoss, Jessica L. Zichichi, Ayhan Ergul
New and revised 14C dates for Hawaiian surface lava flows: Paleomagnetic and geomagnetic implications
Radiocarbon dates have been obtained for 30 charcoal samples corresponding to 27 surface lava flows from the Mauna Loa and Kilauea volcanoes on the Island of Hawaii. The submitted charcoal was a mixture of fresh and archived material. Preparation and analysis was undertaken at the NERC Radiocarbon Laboratory in Glasgow, Scotland, and the associated SUERC Accelerator Mass Spectrometry facility. The
Authors
Nicola Pressling, Frank A. Trusdell, David Gubbins
Kilauea slow slip events: Identification, source inversions, and relation to seismicity
Several slow slip events beneath the south flank of Kilauea Volcano, Hawaii, have been inferred from transient displacements in daily GPS positions. To search for smaller events that may be close to the noise level in the GPS time series, we compare displacement fields on Kilauea's south flank with displacement patterns in previously identified slow slip events. Matching displacement patterns are
Authors
Emily K. Montgomery-Brown, P. Segall, Asta Miklius
Crustal structure across the Three Gorges area of the Yangtze platform, central China, from seismic refraction/wide-angle reflection data
We present active-source seismic data recorded along a 300 km-long profile across the Three Gorges area of the western Yangtze platform, central China. From west to east, the profile crosses the Zigui basin, Huangling dome and Jianghan basin. The derived crustal P-wave velocity structure changes significantly across the Tongchenghe fault that lies at the transition from the Huangling dome to the J
Authors
Zhongjie Zhang, Z. Bai, Walter D. Mooney, C. Wang, X. Chen, E. Wang, J. Teng, N. Okaya