Search Results - "OKUBO, PAUL G."

Comprehensive High‐Precision Relocation of Seismicity on the Island of Hawai‘i 1986–2018 by Matoza, Robin S., Okubo, Paul G., Shearer, Peter M.

“…Abundant seismicity beneath the Island of Hawai‘i from mantle depths to the surface plays a central role in understanding how volcanoes work, grow, and evolve…”
Get full text

Three-dimensional seismic velocity structure of Mauna Loa and Kilauea volcanoes in Hawaii from local seismic tomography by Lin, Guoqing, Shearer, Peter M., Matoza, Robin S., Okubo, Paul G., Amelung, Falk

“…We present a new three‐dimensional seismic velocity model of the crustal and upper mantle structure for Mauna Loa and Kilauea volcanoes in Hawaii. Our model is…”
Get full text

Swarms of similar long-period earthquakes in the mantle beneath Mauna Loa Volcano by Okubo, Paul G., Wolfe, Cecily J.

“…We present analyses of two swarms of long-period (LP) earthquakes at > 30 km depth that accompanied the geodetically observed 2002–2005 Mauna Loa intrusion…”
Get full text

Monitoring very-long-period seismicity at Kilauea Volcano, Hawaii by Dawson, Phillip B., Benítez, M. C., Chouet, Bernard A., Wilson, David, Okubo, Paul G.

“…On 19 March, 2008 eruptive activity returned to the summit of Kilauea Volcano, Hawaii with the formation of a new vent within the Halemaumau pit crater. The…”
Get full text

Seismic Evidence for a Shallow Detachment Beneath Kīlauea's South Flank During the 2018 Activity by Lin, Guoqing, Okubo, Paul G.

“…We investigate earthquake distribution and focal mechanisms associated with the 2018 Kīlauea volcano eruption in Hawaii. Our high‐precision earthquake…”
Get full text

Volcano-tectonic implications of 3-D velocity structures derived from joint active and passive source tomography of the island of Hawaii by Park, Jaewoo, Morgan, Julia K., Zelt, Colin A., Okubo, Paul G.

“…We present a velocity model of the onshore and offshore regions around the southern part of the island of Hawaii, including southern Mauna Kea, southeastern…”
Get full text

Microearthquake streaks and seismicity triggered by slow earthquakes on the mobile south flank of Kilauea Volcano, Hawai'i by Wolfe, Cecily J., Brooks, Benjamin A., Foster, James H., Okubo, Paul G.

“…We perform waveform cross correlation and high precision relocation of both background seismicity and seismicity triggered by periodic slow earthquakes at…”
Get full text

Earthquake collapse mechanisms and periodic, migrating seismicity during the 2018 summit collapse at Kīlauea caldera by Alvizuri, Celso R., Matoza, Robin S., Okubo, Paul G.

“…•54 earthquakes (M 5) in succession from the 2018 summit collapse at Kilauea volcano.•Earthquake mechanisms (moment tensors) for the M5 events reveal…”
Get full text

Mantle Fault Zone beneath Kilauea Volcano, Hawaii by Wolfe, Cecily J., Okubo, Paul G., Shearer, Peter M.

“…Relocations and focal mechanism analyses of deep earthquakes (≥13 kilometers) at Kilauea volcano demonstrate that seismicity is focused on an active fault zone…”
Get full text

High-precision relocation of long-period events beneath the summit region of Kilauea Volcano, Hawai'i, from 1986 to 2009 by Matoza, Robin S, Shearer, Peter M, Okubo, Paul G

“…Long-period (0.5-5 Hz, LP) seismicity has been recorded for decades in the summit region of Kilauea Volcano, Hawai'i, and is postulated as linked with the…”
Get full text

The 2023 US 50-State National Seismic Hazard Model: Overview and implications by Petersen, Mark D, Shumway, Allison M, Powers, Peter M, Field, Edward H, Moschetti, Morgan P, Jaiswal, Kishor S, Milner, Kevin R, Rezaeian, Sanaz, Frankel, Arthur D, Llenos, Andrea L, Michael, Andrew J, Altekruse, Jason M, Ahdi, Sean K, Withers, Kyle B, Mueller, Charles S, Zeng, Yuehua, Chase, Robert E, Salditch, Leah M, Luco, Nicolas, Rukstales, Kenneth S, Herrick, Julie A, Girot, Demi L, Aagaard, Brad T, Bender, Adrian M, Blanpied, Michael L, Briggs, Richard W, Boyd, Oliver S, Clayton, Brandon S, DuRoss, Christopher B, Evans, Eileen L, Haeussler, Peter J, Hatem, Alexandra E, Haynie, Kirstie L, Hearn, Elizabeth H, Johnson, Kaj M, Kortum, Zachary A, Kwong, N Simon, Makdisi, Andrew J, Mason, H Benjamin, McNamara, Daniel E, McPhillips, Devin F, Okubo, Paul G, Page, Morgan T, Pollitz, Fred F, Rubinstein, Justin L, Shaw, Bruce E, Shen, Zheng-Kang, Shiro, Brian R, Smith, James A, Stephenson, William J, Thompson, Eric M, Thompson Jobe, Jessica A, Wirth, Erin A, Witter, Robert C

“…The US National Seismic Hazard Model (NSHM) was updated in 2023 for all 50 states using new science on seismicity, fault ruptures, ground motions, and…”
Get full text

A large refined catalog of earthquake relocations and focal mechanisms for the Island of Hawai'i and its seismotectonic implications by Lin, Guoqing, Okubo, Paul G.

“…We present high‐quality focal mechanisms based on a refined earthquake location catalog for the Island of Hawai'i, focusing on Mauna Loa and Kīlauea volcanoes…”
Get full text

2021 US National Seismic Hazard Model for the State of Hawaii by Petersen, Mark D, Shumway, Allison M, Powers, Peter M, Moschetti, Morgan P, Llenos, Andrea L, Michael, Andrew J, Mueller, Charles S, Frankel, Arthur D, Rezaeian, Sanaz, Rukstales, Kenneth S, McNamara, Daniel E, Okubo, Paul G, Zeng, Yuehua, Jaiswal, Kishor S, Ahdi, Sean K, Altekruse, Jason M, Shiro, Brian R

“…The 2021 US National Seismic Hazard Model (NSHM) for the State of Hawaii updates the previous two-decade-old assessment by incorporating new data and modeling…”
Get full text

Location and size of the shallow magma reservoir beneath Kīlauea caldera, constraints from near-source Vp/Vs ratios by Lin, Guoqing, Amelung, Falk, Shearer, Peter M., Okubo, Paul G.

“…We present high‐resolution compressional wave to shear wave velocity ratios (Vp/Vs) beneath Kīlauea's summit caldera by applying an in situ estimation method…”
Get full text

Kīholo Bay, Hawai'i, earthquake sequence of 2006: Relationship of the main shock slip with locations and source parameters of aftershocks by Yamada, Takuji, Okubo, Paul G., Wolfe, Cecily J.

Get full text

High‐precision relocation of long‐period events beneath the summit region of Kı̄lauea Volcano, Hawai‘i, from 1986 to 2009 by Matoza, Robin S., Shearer, Peter M., Okubo, Paul G.

“…Long‐period (0.5–5 Hz, LP) seismicity has been recorded for decades in the summit region of Kı̄lauea Volcano, Hawai‘i, and is postulated as linked with the…”
Get full text

Systematic relocation of seismicity on Hawaii Island from 1992 to 2009 using waveform cross correlation and cluster analysis by Matoza, Robin S., Shearer, Peter M., Lin, Guoqing, Wolfe, Cecily J., Okubo, Paul G.

“…The analysis and interpretation of seismicity from mantle depths to the surface play a key role in understanding how Hawaiian volcanoes work. We present…”
Get full text

High-resolution locations of triggered earthquakes and tomographic imaging of Kilauea Volcano's south flank by Syracuse, Ellen M., Thurber, Clifford H., Wolfe, Cecily J., Okubo, Paul G., Foster, James H., Brooks, Benjamin A.

“…The spatiotemporal patterns of seismicity beneath Kilauea's south flank give insight to the structure and geometry of the decollement on which large,…”
Get full text

The Accommodation of the South Flank's Motion by the Koa‘e Fault System, Kīlauea, Hawai‘i: Insights From the June 2012 Earthquake Sequence by Ge, Shuangyu, Lin, Guoqing, Amelung, Falk, Okubo, Paul G., Swanson, Donald A., Yunjun, Zhang

“…The Koa‘e fault system is a prominent and complex structural element of Kīlauea Volcano, Hawai‘i. On 5 June 2012, a sequence of shallow earthquakes occurred in…”
Get full text

Seismic tomography of compressional wave attenuation structure for Kilauea Volcano, Hawai'i by Lin, Guoqing, Shearer, Peter M, Amelung, Falk, Okubo, Paul G

“…We present a frequency-independent three-dimensional (3-D) compressional wave attenuation model (indicated by the reciprocal of quality factor Qp) for Kilauea…”
Get full text