The 2017–2018 Maple Creek Earthquake Sequence in Yellowstone National Park, USA

Pang, Guanning; Koper, Keith D.; Hale, J. Mark; Burlacu, Relu; Farrell, Jamie; Smith, Robert B.

doi:10.1029/2019gl082376

Cited by 14 publications

(4 citation statements)

References 43 publications

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“…The unclear orientation of the group of earthquakes in the western part of the Norris Geyser Basin area, might also depend upon the influence of a fracture network constituted by a larger range of planes striking WNW-ESE to N-S. This suggestion is consistent with the larger scattering of   directions in the Norris Geyser Basin area and with the complexity of the fault network and of temporal and spatial evolution of faulting during the 2017 Maple Creek earthquake swarm (Shelly and Hardebeck, 2019;Pang et al, 2019).…”

Section: Seismic Clusters and Slip Planesmentioning

confidence: 63%

Unraveling the complex deformation pattern at Yellowstone plateau through seismicity and fracture analysis

et al. 2020

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Section: Seismic Clusters and Slip Planesmentioning

confidence: 63%

Unraveling the complex deformation pattern at Yellowstone plateau through seismicity and fracture analysis

et al. 2020

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“…4 ). These earthquakes, part of the Maple Creek sequence, were interpreted both as a swarm driven by magmatic fluids ( 32 ) and as aftershocks from the 1959 M w 7.3 Hebgen Lake, Montana earthquake ( 33 ). We calculated PGV at seismic station YNM in Norris Geyser Basin ( Fig.…”

Section: Why Did Steamboat Become Active In 2018?mentioning

confidence: 99%

The 2018 reawakening and eruption dynamics of Steamboat Geyser, the world’s tallest active geyser

Reed

Muñoz-Sáez

Hajimirza

et al. 2021

Proc. Natl. Acad. Sci. U.S.A.

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Steamboat Geyser in Yellowstone National Park’s Norris Geyser Basin began a prolific sequence of eruptions in March 2018 after 34 y of sporadic activity. We analyze a wide range of datasets to explore triggering mechanisms for Steamboat’s reactivation and controls on eruption intervals and height. Prior to Steamboat’s renewed activity, Norris Geyser Basin experienced uplift, a slight increase in radiant temperature, and increased regional seismicity, which may indicate that magmatic processes promoted reactivation. However, because the geothermal reservoir temperature did not change, no other dormant geysers became active, and previous periods with greater seismic moment release did not reawaken Steamboat, the reason for reactivation remains ambiguous. Eruption intervals since 2018 (3.16 to 35.45 d) modulate seasonally, with shorter intervals in the summer. Abnormally long intervals coincide with weakening of a shallow seismic source in the geyser basin’s hydrothermal system. We find no relation between interval and erupted volume, implying unsteady heat and mass discharge. Finally, using data from geysers worldwide, we find a correlation between eruption height and inferred depth to the shallow reservoir supplying water to eruptions. Steamboat is taller because water is stored deeper there than at other geysers, and, hence, more energy is available to power the eruptions.

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“…Here we examine the 2017 “Maple Creek” earthquake swarm (Pang et al, ), which began in June 2017. Its main three‐month phase of activity included nearly 2,500 routinely cataloged events, with magnitudes ranging up to M w 4.4, recorded on a network of 27 seismic stations within 70 km (Figure ).…”

Section: Introductionmentioning

confidence: 99%

Illuminating Faulting Complexity of the 2017 Yellowstone Maple Creek Earthquake Swarm

Shelly

Hardebeck

2019

Geophysical Research Letters

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The 2017 Maple Creek earthquake swarm was one of the most prolific swarms to occur in the Yellowstone region in the past few decades, with nearly 2,500 routinely detected earthquakes up to Mw 4.4 between June and September 2017. To gain insight into the mechanics and underlying mechanisms of this swarm, we enhanced the seismic catalog, detecting and precisely locating nearly 16,000 earthquakes, while estimating magnitudes for more than 30,000 events. We further utilized the cross‐correlation measurements derived from this processing to determine relative polarities for event pairs and to estimate focal mechanisms for the relocated population of events. The results reveal a complex network of faults activated progressively during the swarm, which may reflect diffusion of aqueous fluid pressure through these structures. Fluid‐driven earthquake sequences may naturally generate more complex faulting geometries compared to earthquake sequences dominated by stress transfer.

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The 2017–2018 Maple Creek Earthquake Sequence in Yellowstone National Park, USA

Cited by 14 publications

References 43 publications

Unraveling the complex deformation pattern at Yellowstone plateau through seismicity and fracture analysis

Unraveling the complex deformation pattern at Yellowstone plateau through seismicity and fracture analysis

The 2018 reawakening and eruption dynamics of Steamboat Geyser, the world’s tallest active geyser

Illuminating Faulting Complexity of the 2017 Yellowstone Maple Creek Earthquake Swarm

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