Welcome to the AEG Inland Empire Chapter
of the Southern California Region – Association of Environmental and Engineering Geologists

August 2024 Meeting of the Chapter

We hope you will join us for our eighth 2024 AEG Inland Empire meeting. The meeting will be held Wednesday, August 21st, at Johnny Carino’s Italian Restaurant, in Eastvale. This is a “north” venue of our roving AEG-IE meeting locations. Looking forward to seeing you there!



UPCOMING MEETING NOTICE

*** Wednesday, August 21, 2024 ***

Download the Announcement

Topic: "Geophysical tools and techniques that support Geotechnical Investigations"

Speaker: Mr. John Diehl, PE, GEOVision Geophysical Services

Date: Wednesday, August 21, 2024
Social hour: 5:30 pm
Dinner: 6:30 pm
Presentation: 7:15pm

Location: Johnny Carino's Italian Restaurant
12447 Limonite Ave.
Eastvale, CA 91572

Cost: $45 per person with advance reservations for AEG members, $50 for non-AEG members, $50 for anyone without reservations (at the door), and $10 for students with a valid student ID and current AEG Student membership; the Student Membership is FREE, but it sometimes takes a few days to receive a student membership.

Food: From Johnny Carino's Italian Restaurant

RSVP: Email AEG-IE at aeginland@gmail.com

Please make reservations prior to 12:00pm on August 19, 2024.


Presentation Summary:

Geophysical tools and techniques can provide a variety of measurements and information about the subsurface that can dramatically improve our understanding of the physical properties of the rock and soil beneath our feet. In this presentation, John Diehl, President of GEOVision Geophysical Services will review multiple geophysical techniques that all Engineering Geologists should know including:

  • Surface Wave surveys for Vs30 site characterization
  • Seismic refraction for rippability
  • Seismic reflection for shallow fault mapping
  • Borehole techniques to measure shear wave velocity

Case studies and examples from actual projects will be shown and explained.

 
Speaker Biography:

Mr. John Diehl, PE.

John Diehl received his BSME in 1976 from California State Polytechnic Institute of Pomona. His MSCE was received in 1977 from UCLA, where he also attended to receive his MBA in 1988. With two partners, he co-founded GEOVision in 1995, which nearly 30 years later is one of the most respected geophysical consulting firms in the United States. During his career, he has authored or co-authored over 30 publications, focusing primarily on geophysical instrumentation and geophysical testing. He is a lifetime member of ASCE and is a Professional Engineer in the state of California.