Tag: Tsunami

Tsunami Preparedness – Saving Lives and Protecting Property

Mar 28, 2017 3:00 pm
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Ryan Arba is the branch chief for the Cal OES Earthquake and Tsunami Program.   In this episode, Ryan talks about the program, its federal partner NOAA and the focus of this year’s Tsunami Preparedness Week events.

The California Governor’s Office of Emergency Services, Earthquake, Tsunami and Volcano Program is continuously researching, learning, and collaborating with science, industry, and academic experts to develop and confirm the latest, best available knowledge base to help make California’s residents and visitors safer in the event of tsunamic activity. By mapping potential inundation and evacuation areas, providing assistance in response and evacuation planning, implementing outreach, education and warning signage at the coast, as well as determining ways to improve preparedness and resilience of California’s ports and harbors, our staff strives to ensure everyone on the coast remains safe before, during and after the next tsunami.

Shawn Boyd & Ryan Arba In-Studio

Catastrophic tsunamis are rare, we may have a tendency to get complacent and think that one will never happen while we’re at the beach. However, every coastline in the world is vulnerable to a tsunami. Although a tsunami cannot be prevented, you can diminish adverse impacts through community preparedness, timely warnings and effective response.​​​

​California’s 2017 Tsunami Preparedness Week is March 27-31. On March 29, Cal OES, the California Geological Survey (CGS) and the NWS will conduct a conference call with emergency managers from counties along the coast to test several aspects of the tsunami response, including the ability of the National Tsunami Warning Center (NTWC) to send and coast emergency organizations to receive specific tsunami alert messages.

During the conference call, representatives from the NTWC, Cal OES and CGS will also test their ability to accurately calculate and verify information contained in draft Tsunami Evacuation Playbooks that will be used by local emergency to determine if an evacuation is necessary and, if show, for how big of an area. The test also allows emergency managers from coastal communities to confirm their ability to receive playbook-related information, test their ability to make decisions regarding evacuation, and as well as to test their abilities to communicate information to port and harbor officials as well as to test their reverse notification and other warning systems reaching people in coastal hazard areas.

We’d love to hear from you – Record your questions or comments

Helpful Links and Additional Resources

UC Santa Cruz Tsunami Research Expedition

Cal OES National Tsunami Preparedness Week

Cal OES Tsunami Program


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Drilling Down into Tsunami Preparedness Week

Mar 27, 2017 6:12 pm

This week (March 27 – 31) is Tsunami Preparedness Week in California. Whether you live along the coast, have family and friends there, or just visit on occasion, it’s important to know what the hazards are and how to keep you and your family safe.  Cal OES has put together an OES News In-depth report to shed a little light on tsunami safety and to show you some of the latest “ground breaking” research that’s gone into understanding the connection between earthquakes and tsunamis.


Bonus Material

Emily Brodsky Explains How to Take the Temperature of an Undersea Fault

Thorne Lay on Big Sur Concern

Thorne Lay … continue reading »

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A Look Back at the 1964 Alaska Earthquake and Tsunami

Mar 9, 2017 4:47 pm

The most powerful earthquake in United States history was recorded 53 years ago this month. At 5:36 p.m. local time, a magnitude 9.2 earthquake occurred in the Prince William Sound region in Alaska on March 27, 1964.

In all, 139 people were believed to have died as a result of the earthquake. Fifteen died from the earthquake alone, while 106 died in Alaska, 13 died in California and five died in Oregon all related to tsunamis.

In addition to a tectonic tsunami, about 20 smaller and local tsunamis occurred. Smaller tsunamis were created by submarine and subaerial landslides, and tsunami waves were measured in over 20 countries including Peru, New Zealand, Papua New Guinea, Japan and Antarctica.

The earthquake rupture started approximately 15 miles beneath the surface, with its epicenter about 6 miles east of the mouth of … continue reading »

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Inside the Eye of the Storm: The Cal OES/NOAA Tsunami Exercise

Apr 23, 2015 3:11 pm

NOAA and the Calif. Office of Emergency Services (Cal OES) conducted a test of the tsunami warning communications system on March 25th in coastal areas of central and southern California.

NOAA’s National Weather Service Offices in Monterey, Oxnard and San Diego broadcast the “Required Monthly Test,” and was also broadcast on NOAA Weather Radio All Hazards, local television and radio stations. Cal OES collaborated with 20 coastal counties in addition to NOAA and the Civil Air Patrol to carry out the annual Tsunami Warning Communications Test. This year the weather cooperated with exercise and allowed the Civil Air Patrol to participate in a flyover in Mendocino, Humboldt and Del Norte counties. During the test, the CAP tested their capability to alert the public of a simulated tsunami warning using an on-board public address system.

There were three … continue reading »

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How Good is Tsunami Preparedness in the United States?

Dec 29, 2014 12:09 pm

10 Years of Progress after the Devastating 2004 Indian Ocean Tsunami


Article published by the Western States Seismic Policy Council

– On the 10-year anniversary of the deadly December 26, 2004 Indian Ocean earthquake and tsunami, coastal communities in the U.S. are significantly better prepared for tsunamis than they have been at any time in the past. Tsunami preparedness programs at the State, Territory, and Commonwealth level have worked through the Western States Seismic Policy Council (WSSPC) and the National Tsunami Hazard Mitigation Program (NTHMP) to improve tsunami preparedness at a local level.

Over the past decade, these local tsunami programs have provided communities scientific-based tsunami hazard assessments, emergency response products, and public education support which have and will continue to … continue reading »

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Destination: Earthquake Country!

Jul 29, 2013 10:37 am
California is a wonderful place to visit! Don't let an unexpected emergency catch you unprepared!
California is a wonderful place to visit! Don’t let an unexpected emergency catch you unprepared!

Even though California is known as “Earthquake Country”, the likelihood of a traveler enduring a potentially traumatic earthquake event is minimal. Still, seismic activity is occurs daily here in the Golden State, so visitors should know how to react to tremors.

Preparedness should be a diligent and daily effort,” said Mark Ghildarducci, Director of Cal OES. “Travelers should consider their surroundings, and think about things that can fall, slide, … continue reading »

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