May 14, 2026

12:00 - 1:00 PM Pacific Time

EERI’s San Diego Regional Chapter is hosting a FREE webinar on the Application of Non-Ergodic Site Response Analysis to Seismic Retrofit Projects. This webinar will present results from a study that documents processes and results for case examples from two seismic retrofit projects in Los Angeles, California that incorporated non-ergodic site response analysis.

Speakers:

• Marty Hudson, Ph.D., P.E., G.E. Principal Geotechnical Engineer, Hudson Geotechnics
• Ken Hudson, Ph.D., P.G., E.I.T. Principal Geoscientist , Hudson Geotechnics

For more details, and to register, visit: https://my.eeri.org/events/event-details/?id=afe97e03-c539-f111-9a90-7c1e5292b3b9

Missed the webinar? Find the recording on EERI’s YouTube Channel.

On March 19, 2026, EERI’s Northern California Chapter hosted a Quick Quake Briefing Webinar on the M6.5 Guerrero, Mexico Earthquake. In the webinar, Dr. Leonardo Ramírez, UNAM, provided an overview of the seismological characteristics of the event and the observed impacts on the built environment and Dr. Héctor Guerrero, UNAM, described the effects in Mexico City, with emphasis on basin response and ground-motion amplification. The webinar recording is available on EERI’s YouTube Channel.

On January 14, 2026, EERI’s San Diego Chapter hosted a webinar on, “Site Characterization Using VS30 Per the ASCE 7-22.” The webinar provided guidance and clarification on how to make site characterization consistent with the new ASCE 7-22 standard that is effective starting January 1, 2026. The webinar included presentations from Jonathan Stewart, UCLA, on "Definition, measurement, and application of VS30 in the NEHRP Provisions and from Brady Cox, Utah State University on “Best Practices for Shear Wave Velocity Measurements to Support Vs30 Site Classification or Site-Specific Site Response Analyses Consistent with ASCE 7-22." The webinar recording is available on EERI’s YouTube Channel.

On February 5, 2026, EERI’s Northern California Chapter hosted a Quick Quake Briefing Webinar on the M7 Alaska Hubbard Glacier Earthquake. In the webinar, Dr. Michael West, Alaska State Seismologist and Head of the Alaska Earthquake Center, explained the seismology of the earthquake and how the Hubbard quake differs from other Alaska earthquakes from the recent past and Dr. Kate Allstadt,Research Geophysicist at the United States Geological Survey Geologic, described the mechanisms and significance of the numerous landslides and snow avalanches observed. The webinar recording is available on EERI’s YouTube Channel.

Please join us for a two-part series of webinars sharing observations on the March 28, 2025 M7.7 Myanmar earthquake. This earthquake ruptured approximately 460 km of the right-lateral, strike-slip Sagaing Fault, causing severe damage and loss of life in central Myanmar, with damage and fatalities occurring as far away as Bangkok, Thailand, over 500 km from the end of the fault rupture.

The first webinar will be held on Thursday, July 31, 2025, with two sessions to accommodate different timezones. This webinar will focus on Myanmar, where extensive surface rupture was observed, along with ground failure, infrastructure damage, and numerous building collapses. Presenters will share observations from the field and from a collaborative virtual reconnaissance effort by the Structural Extreme Events Reconnaissance (StEER) Network, Geotechnical Extreme Events Reconnaissance (GEER) Association, Earthquake Engineering Research Institute (EERI), Earthquake Engineering Field Investigation Team, GeoHazards International (GHI), and Asian Institute of Technology. Mr. Saw Htwe Zaw will share observations by the Myanmar Earthquake Committee, an association of professionals within the Federation of Myanmar Engineering Societies that investigated damage in Mandalay and other affected cities. Dr. Susan Hough of USGS will discuss the seismological and strong motion aspects of the event. Dr. Jeanine Engelbrecht of BGC Engineering will share GEER’s observations of ground failure and related impacts, and Dr. Ji-Eun Byun of University of Glasgow will share EEFIT’s virtual observations for buildings and infrastructure. Joint Virtual Assessment Team Lead Dr. Janise Rodgers of GHI will serve as moderator.

Observations from the 2025 M7.7 Myanmar Earthquake: Impacts in Myanmar

• Session A for Asia-Pacific: Thursday, July 31  9-10:30am India / 10-11:30am Myanmar / 11:30am-1pm Philippines / 3:30-5pm New Zealand (Wednesday, July 30 8:30-10pm Pacific). REGISTER HERE FOR SESSION A. 
• Session B for Americas and Europe: Thursday, July 31 8-9:30am Pacific / 10-11:30am Central / 11am-12:30pm Eastern / 5-6:30pm Central Europe / 9:30-11pm Myanmar. REGISTER HERE FOR SESSION B. 

Observations from the 2025 M7.7 Myanmar Earthquake:  Impacts in Thailand and Engineering Implications

The second webinar will take place in a single 90-minute session on Wednesday, August 6 from 6:00-7:30 PM US Pacific Daylight Time (9:00-10:30 PM US Eastern), which is Thursday August 7, 8:00-9:30 AM in Thailand (UTC+7). REGISTER HERE FOR THE SECOND WEBINAR.

In this webinar, presenters from Thailand and the U.S. will share findings on the engineering impacts in Thailand, including the performance of tall buildings and the role of basin effects in Bangkok, as well as the implications for structural engineering design and practice internationally. Dr. Pennung Warnitchai, Professor of Structural Engineering at the Asian Institute of Technology, and Dr. Teraphan Ornthammarath, Associate Professor of Civil Engineering at Mahidol University, will present on the findings from Thailand, with additional comment from Dr. Eduardo Miranda, Professor of Engineering at Stanford and co-chair of the EERI Learning From Earthquakes Program.

Tuesday, February 11, 2025

11:00 AM-12:30 PM PT

REGISTER HERE

Join us for a joint webinar from EERI’s Learning From Earthquakes (LFE) program and the Social Science Extreme Events Research Network (SSEER) network. The webinar will share observations and findings from the EERI-SSEER reconnaissance team that traveled to Turkey in October 2024 to conduct follow-up reconnaissance on the impacts of the February 6, 2023 Kahramanmaras Earthquake Sequence. The team members, Michael Mieler, Burçak Başbuğ, Süleyman Çelik, Louise Comfort, Alpay Demiryurek, Ayse Hortacsu, Carlos Molina-Hutt, Sabine Loos, Halil Sezen, and Egemen Sönmez, conducted reconnaissance on issues in recovery and resilience in the areas of employment, schools, and housing. The team also focused on capturing lessons that can inform the development of functional recovery codes and standards. Their report will be released in early February.

Confirmed Speakers:

• Süleyman Çelik, Anadolu University
• Burçak Başbuğ, Middle East Technical University
• Egemen Sönmez, İzmir University of Economics
• Carlos Molina Hutt, University of British Columbia
• Michael Mieler, ARUP, Learning From Earthquakes Co-Chair (moderator)

LFE's ability to conduct reconnaissance over time to improve our understanding of earthquake recovery and resilience is made possible by the generous support of the many donors to the LFE Endowment Fund.

To register for this free webinar, you will need to sign into your account on EERI’s new member portal. If you haven’t yet reset your password to do so, view the instructions here.

Non-members can register for the webinar by creating a free my.eeri.org account using the “Sign Up” button on the upper right of the page here. Please contact us at This email address is being protected from spambots. You need JavaScript enabled to view it. if you have any questions about the process.

EERI members who attend the webinar will receive a one-hour PDH credit.

Friday, October 18, 2024
11:00 AM - 12:00 PM Pacific Time
REGISTER HERE

Join us for a free webinar highlighting the most recent publication from EERI's Connections Oral History series! The webinar will feature Dr. Izzat (Ed) Idriss, a pioneer in the field of geotechnical earthquake engineering. He will share recollections from his long career as an academic and engineering practitioner, which included major contributions to understanding soil sites and structures behavior and participation in in post-earthquake reconnaissance and investigation of several major earthquakes over the last 50 years. Dr. Idriss will be joined by Dr. Ross W. Boulanger, Distinguished Professor Emeritus of Civil and Environmental Engineering at the University of California, Davis, and a longtime colleague and friend, who conducted the interviews for the oral history.

Thursday, September 5, 2024 (first session)
4:00 - 5:00 PM Pacific Time

Thursday, September 19, 2024 (second session)
4:30 - 5:30 PM Pacific Time

REGISTER HERE

Join EERI next month for a series of two webinars examining the M7.4 earthquake that struck Taiwan earlier this year. Registering once for this series at the above link will allow you to attend both webinars.

The earthquake occurred on April 3 at 7:58 am local time offshore about 11 miles southwest of Hualien City, one of the largest population centers on the east coast (pop. 99,500). The rupture occurred on a northeast–southwest-striking, moderately dipping, reverse fault within the Eurasian Plate. The focal mechanism was reverse-faulting at a 15 km (9 mi) depth. It is the strongest earthquake in Taiwan since the 1999 Chi-Chi earthquake (M7.7). At least 20 people were killed and 1,100 injured, predominantly due to landslides rather than structural collapses. About 110 buildings were destroyed, including some 1,900 houses, and 870 buildings and 75 roads were damaged. While structural damage was reported across Taiwan's eastern and northern regions, it is remarkable that full structural collapses were rare. The earthquake also caused widespread power and water outages, and railway service was partially suspended across Taiwan. Around 800 landslides occurred, and a tsunami with maximum wave heights of 100 cm (40 in) was generated.

The first webinar, on Thursday September 5, is a Quick Quake Briefing hosted by EERI's Northern California chapter. Two speakers from the National Center for Research on Earthquake Engineering (NCREE) in Taipei will join us. Dr. Yu-Chen Ou, Director of NCREE, will present on damage to buildings and other infrastructure, and Dr. Che-Min Lin, Research Fellow of NCREE, will present on the seismology and recorded strong ground motions.

The second webinar, on Thursday September 19, will focus on functional recovery. Dr. Wei-sen Li of the National Science and Technology Center for Disaster Reduction will speak about the role of disaster risk reduction and emergency response in making Taiwan prepared for this earthquake, and Maria Mohammed, S.E. of Structural Focus will report on the findings of the EERI Housner Fellows group that traveled to Taiwan in May to conduct reconnaissance and test a new functional recovery data collection tool.

Wednesday, August 28, 2024
1:00 - 2:00 PM Pacific Time
REGISTER HERE

Join us for the latest in this EERI webinar series showcasing papers of interest from each new issue of Earthquake Spectra! This webinar will feature two papers from the August 2024 issue—the Editor's Choice selection "Regional-Scale Fault-to-Structure Earthquake Simulations with the EQSIM Framework: Workflow Maturation and Computational Performance on GPU-accelerated Exascale Platforms," and the research paper "Seismic Design of Concrete Structures for Damage Control."

Lead authors David McCallen and Eyitayo Opabola will present the papers and respond to questions from participants, and Spectra Associate Editor Carlos Molina Hutt will moderate the webinar.

Tuesday, June 18, 2024
12:00-01:00 PM Pacific Time 
REGISTER HERE

The EERI Northern California Regional Chapter is hosting a FREE webinar on the recent earthquake that affected the northeast United States. The earthquake struck mid-morning near Whitehouse Station, New Jersey, and was felt by over 40 million people all across the northeastern United States from Maine in the north to Washington, D.C. in the south. USGS classified the shaking as light (MMI < IV) throughout the region. The following link is to a New York City evening news summary. The New Jersey event was an intraplate earthquake, unlike those that occur in California that are near a plate boundary.  While this earthquake was relatively small, quakes of this magnitude are widely felt in the eastern United States because of the seismic wave propagation characteristics in the region.  Although New York City did not suffer significant damage (40 miles east of epicenter), the city emergency response systems were activated.

Speakers:

• Oliver Boyd, Ph.D., Research Geophysicist, U.S. Geological Survey.  He will present on the earthquake mechanism and the seismology of the east coast region.

• Yegal Shamash, PE, Chief Structural Engineer, NYC Department of Buildings.  He will present on the earthquake damage and emergency response actions.