Localized Surface Disruptions Observed by InSAR during Strong Earthquakes in Java and Hawai'i

Poland, Michael P.

doi:10.1785/0120090175

Cited by 14 publications

(10 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…sensor, after the August-September 2010 eruption events. Such a large deformation could be due to a combined effects of depressurization of the shallow magma reservoir due to cooling, and thermo-elastic contraction and poro-elastic settling of eruptive deposits (e.g., Lu et al, 2005;Wadge et al, 2006;Lee et al, 2008;Poland, 2010).…”

Section: Resultsmentioning

confidence: 99%

Monitoring Mount Sinabung in Indonesia Using Multi-Temporal InSAR

Lü¹,

Kim²

2017

Korean Journal of Remote Sensing

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 99%

Monitoring Mount Sinabung in Indonesia Using Multi-Temporal InSAR

Lü¹,

Kim²

2017

Korean Journal of Remote Sensing

View full text Add to dashboard Cite

“…Interferograms have also been instrumental in identifying areas prone to collapse, for example, along the rim of the summit eruptive vent that opened in 2008 (Richter et al, 2013) and on supposedly stable land near the lava-ocean entry (Poland and Orr, 2014). InSAR has even been important for detecting subtle features associated with earthquakes, from small (∼M 3) shallow seismic events in the Koa'e Fault System between Kīlauea's summit caldera and the coast (Swanson et al, 2018) (Figure 5), to isolated areas of subsidence on the western side of the island (mostly in Mauna Loa lava flows) that were associated with a magnitude M 6.7 earthquake in 2006 and are thought to be a result of surface settling due to strong shaking (Poland, 2010).…”

Section: Geodetic Imaging Of Magma Storage and Transport Systems At Kmentioning

confidence: 99%

Space-Based Imaging Radar Studies of U.S. Volcanoes

et al. 2019

View full text Add to dashboard Cite

The arrival of space-based imaging radar as a revolutionary land-surface mapping and monitoring tool little more than a quarter century ago enabled a spate of innovative volcano research worldwide. Soon after launch of European Space Agency's ERS-1 spacecraft in 1991, the U.S. Geological Survey began SAR and InSAR studies of volcanoes in the Aleutian and Cascades arcs, in Hawai'i, and elsewhere in the western U.S. including the Yellowstone and Long Valley calderas. This paper summarizes results of that effort and presents new findings concerning: (1) prevalence of volcano deformation in the Aleutian and Cascade arcs; (2) surface-change detection and hazard assessment during eruptions at Aleutian and Hawaiian volcanoes; (3) geodetic imaging of magma storage and transport systems in Hawai'i; and (4) deformation sources and processes at the Yellowstone and Long Valley calderas. Surface deformation caused by a variety of processes is common in arc settings and could easily escape detection without systematic InSAR surveillance. Space-based SAR imaging of active lava flows and domes in remote or heavily vegetated settings, including during periods of bad weather and darkness, extends land-based monitoring capabilities and improves hazards assessments. At Kīlauea Volcano, comprehensive SAR and InSAR observations identify multiple magma storage zones beneath the summit area and along the East Rift Zone, and illuminate magma transport pathways. The same approach at Yellowstone tracks the ascent of magmatic volatiles from a mid-crustal intrusion to shallow depth and relates that process to increased hydrothermal activity at the surface. Together with recent and planned launches of highly capable imaging-radar satellites, these findings support an optimistic outlook for near-real time surveillance of volcanoes at global scale in the coming decade.

show abstract

“…Acceleration in buildings from zero to several meters per second will cause structures, especially with high masses, likely to retain their positions so that building strength is crucial. For example, an earthquake acceleration of 3-5 m/sec 2 (± 0.5g) in the Yogyakarta earthquake of 27 May 2006 (Poland, 2010) can destroy non-technical buildings quickly. Due to the sediment soil conditions that are soft, the acceleration is even doubled in the area near the source of the earthquake (Walter et al, 2008) or 0.20 ~ 0.34g in the horizontal direction up to 3.5g in the vertical direction (Amr S Elnashai, Kim, Yun, & Sidarta, 2007), so the impact is that almost none of the buildings survives in the area.…”

Section: Accelerationmentioning

confidence: 99%

Earthquake Failures on Buildings and the Role of Architect on Building Safety

Idham

2019

dimensi

View full text Add to dashboard Cite

The safety of building users against earthquakes is not directly caused by earthquakes, but rather by the ability of the people and environment to deal with the shake. The failure of the building is the most causing factor for the casualties and property losses. However, the building structural strength is not the single decisive aspect of building safety but also accompanying by others such as building design and the use of architectural elements. This paper explores the various failures after earthquakes and its relationship with architecture designs as the work of architect in the building process. The discussion is conducted based on the type of the failures, the causing factor of the damages, and how the builders should anticipate it. The results of this study show that the main principles relating to the safety of buildings are closely related to architects who play a significant role in building design starting from the decision of the location, choosing the appropriate building type, designing less vulnerable structure, and avoiding the complexity in building design. Architects are expected to increase the safety of building users by their devoted responsibility for avoiding the unnecessary casualties.

show abstract

Localized Surface Disruptions Observed by InSAR during Strong Earthquakes in Java and Hawai'i

Cited by 14 publications

References 16 publications

Monitoring Mount Sinabung in Indonesia Using Multi-Temporal InSAR

Monitoring Mount Sinabung in Indonesia Using Multi-Temporal InSAR

Space-Based Imaging Radar Studies of U.S. Volcanoes

Earthquake Failures on Buildings and the Role of Architect on Building Safety

Contact Info

Product

Resources

About