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Harvey went from a tropical depression to a major hurricane and intensified rapidly to a category 4 hurricane with winds up to 130 mph. It made a landfall on August 25, 2017 at about 22:00 local time (August 26, 2017 3:00 UTC) near Rockport, Texas.
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Quick Links
Links ¶
USGS — Hurricane Harvey
US Naval Research Laboratory, Marine Meteorology — Track of Harvey
US Naval Research Laboratory, Marine Meteorology — Track of Harvey as KML
National Oceanic and Atmospheric Administration, National Hurricane Center — TROPICAL STORM HARVEY
Figures ¶
[IRIS] Path/wind speed of Harvey (data from https://www.nrlmry.navy.mil) and 
location of selected seismic stations
[Jon Tytell and ANF] N4.735B waveforms between 2017-08-24 12:00:00 UTC 
and 2017-08-28 12:00:00 UTC. Channels from top to bottom:
BDF (infrasound microphone, relative barometric pressure),
BDO (absolute barometric pressure),
LDM (absolute barometric pressure in hPa),
BHZ (Broadband Seismometer Vertical ground velocity)
[Robert Anthony, USGS] Acceleration spectrogram for the vertical 
component of 735B (Kenedy, TX, USA) from 18 August to 29 August 2017 (UTC).
Power Spectral Density (PSD; rel. 1 (m/s2)2/Hz) estimates were attained using
the IRIS Noise Tool Kit (NTK) using 2-hour windows with 50% overlap and 1/16th
octave smoothing. Peak ground acceleration between 0.2-0.5 Hz exceeds the
New High Noise Model (Peterson, 1993) by ~ 10 dB. Significant earthquakes
(M > 6.0) are noted in white text on the spectrogram.
[Zhigang Peng] N4.735B..LHZ waveform 2017-08-25 00:00:00 UTC to 
2017-08-30 00:00:00 UTC:
Plot link via IRIS
Data link via IRIS
Station information from IRIS
Videos ¶
PowerPoint Presentation ¶
Zhigang Peng PowerPoint Update on Hurricane Harvey
Miscellaneous Contributions ¶
[Jim O’Donnell, HHseismic] Geophysicist] We recorded possible pseudo Rayleigh 
waves (pRg) from Harvey on the KawLake geophone array in Oklahoma which
was approximately 950 Kms from Harvey (see figure 1). The records are from
Sunfull PS2b geophones which are 3c, the 2 Hz phones had their response
extended from 2Hz (0.5s) to 0.2 Hz (5s) by an inverse digital filter, which is
based on the inverse filter design by Bob McClure (2007);
see Inverse Filter for
Seismic Sensors for more information.
The records for one of the Kawlake array sites is shown here.
All 3 components show a large 5s wave, which is largest when Harvey is in
shallow water, (see fig. 2). The data was recorded on Sigma 4 recorders from
the Seismic Source Company in Ponca City, OK. The 3 components (Z, H1, H2)
time series for 10 minute records with 2ms sampling and their respective
amplitude spectra are displayed in figures 3, 4, and 5.
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