BEN FERRAIUOLO
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July 5, 2018

Picture
This image contains 3 seismogram plots. The first one at the top shows almost the entire swarm. The next two plots in the image above are "zoomed in".
Picture
This image contains 3 spectrogram plots. The first plot shows almost the entire swarm. The next two plots in the image above are "zoomed in".
This swarm was pretty crazy! Over 160 earthquakes within only 52 minutes! This swarm is one of the best to listen to via the video I provided with seismic audio.

Start of swarm: 5:45UTC
End of swarm: ~6:37UTC
Note: This earthquake swarm was preceded by 3 earthquakes just to the southeast. Also notice how many events there were within only about 52 minutes? This is one of the most energetic, rapid fire swarms ever seen near Yellowstone Lake and West Thumb Lake. Around 160 events in only about 52 minutes. However many were very emergent and seemed to have led to an extremely shallow (possible near-surface) rupture just to the west of West Thumb Lake. Could all of this have caused a new hydrothermal explosion in a remote area? Someday I will find out! (I am referencing the most shallow reported event of the swarm.)
Total earthquake count (includes even the tiniest events): ~160
Reported count: 12
Magnitudes/Depths of reported events for this swarm from newest to oldest (showing magnitude/depth): 0.5 at 5.4km, 1.9 at -2.6km(!), 1.1 at 1.9km, 1.0 at 3.6km, 1.8 at 1.1km, 0.8 at 4.1km, 1.1 at 1.2km, 1.9 at 1.9km, 1.3 at 3.9km, 0.8 at 10.2km, 1.6 at 11.1km, 2.5 at 11.1km
Largest reported earthquake of this swarm: 2.5 at 11.1km (For main burst: 1.9 at -2.6km(!), 1.9 at 1.9km)
Largest amplitude: ~6,700 (B944), ~29,500 (YLT)
USGS EQ map of this swarm: CLICK HERE
Severity: Major
# of 3-plot images: 21

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  • Home
  • Yellowstone
    • Yellowstone Blog
    • 2008-2009 Yellowstone Lake Dike Intrusion
    • Rapid-Fire Swarms 2014-2018
    • Steamboat Geyser Eruptions >
      • Steamboat Eruptions 2020
      • Steamboat Eruptions 2019
      • Steamboat Eruptions 2018
  • Hawaii
    • Hawaii Blog
    • Hawaii Spasmodic Tremor
    • 2018 Kilauea-LERZ Eruptions
  • How To...
    • ...Retrieve Seismic Data
    • ...read webicorders/helicorders and seismic plots
    • ...Understand Spectrograms
    • ...USE SWARM Software
    • ...use jamaseis program
    • ...use waves program
    • ...understand UTC
    • ...Read/Create GPS Deformation Charts
    • ...use s.w.a.r.m. program (OLD)
  • Seismic Events
    • Event Examples
    • Exotic Events
    • Whale Calls
    • Cascade Volcanoes' Low Frequency Events
  • Seismo-Blog
  • Other Seismic Blogs
    • Quake Swarms
    • United States
    • East Coast, USA
    • World
  • Monthly Volcano Updates
  • Uplift/Subsidence Update
  • Videos/Multimedia
    • Newberry Videos
    • (OLD) 2019 Monthly/Yearly Updates
  • Seismic Software
    • jAmaSeis
    • SWARM
    • WAVES
  • Seismic Network Help
  • Links
  • About Me
  • Contact
  • Test Your Knowledge!
  • Lucas Andrew Ferraiuolo (Pro Pics)
  • Garbage Trucks?!