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The Tsunami Threat

Monday, November 8th, 2010
Tsunami Warning Sign that says "Tsunami Hazard Zone."

Tsunamis are rare but, nonetheless, quite dangerous.

Tsunamis: The Threat is Real

Although rare, tsunamis pose extreme danger in coastal areas due to their sheer size and difficult predictability. In the United States, tsunamis are a threat that could one day cause a major disaster. According to the California Seismic Safety Commission, 80 tsunamis have been recorded over the past 150 years in California. In 1964, the Great Alaskan Earthquake produced numerous tsunamis, including some that killed twelve people in California and four in Oregon.

Although they are often referred to as “tidal waves,” tsunamis are not generated or affected by tidal forces. In fact, tsunamis can do considerable damage even if they occur during low tides.

How Tsunamis are Formed:

  • In basic terms, tsunamis result from the displacement of a large volume of water.
  • Earthquakes, volcanic eruptions and landslides can lead to tsunamis.
  • When an earthquake occurs in the ocean, two plates are slipping, which causes a release of energy. In the water, this movement of plates is transferred into wave- energy.
  • Although the waves generated at first have a very small height, they are very long (and are referred to as wavelengths). In  the open ocean, tsunamis often pass by ships unnoticed.
  • Reaching speeds of up to 500 mph, the waves slow and increase in height as they reach shore.
  • “Mega-Tsunamis,” with waves hundreds of feet high, can be caused by massive landslides

Detection Systems :

After the Indian Ocean tsunami in 2004, the Bush Administration enacted more tsunami planning and early warning systems for the United States. Part of this effort included an increase in the number of Deep-Ocean Assessment and Reporting of Tsunami (DART) program buoys. Each of these buoys are anchored to the sea floor and relay valuable information including pressure and temperature data which are used to calculate wave height. GPS-based information is relayed back to a satellite and picked up by the receiving station.

Tsunami about to wash over a city.

Implications for Building Owners and Property Managers:

  • Review tsunami inundation zone maps that are offered by Federal agencies. These maps are similar to flood plain maps and provide a clear picture of potential threats. In California, the State Office of Emergency Services produces these maps, which are increasingly used by municipalities for evacuation planning.
  • Read the California’s Seismic Safety Commission’s tips on earthquakes and the related tsunami threat.
  • Be aware of warnings from the National Oceanic and Atmospheric Administration (NOAA). In June of 2005, a watch was quickly issued for the Washington and California coasts.
  • Consider your building’s structure to determine if it can sustain tsunami forces, which differ greatly from that of earthquakes.

We believe that knowledge and preparedness saves lives. Although tsunamis that cause extreme damage are rare, they are potentially devastating and occur with minimal warning. For coastal properties, implementing tsunami-specific information into disaster planning helps building owners and facility managers cover all the bases” and remain prepared for any threat.

When a disaster strikes, prior planning and clear decisive action can help save lives.  For the latest emergency management training for facility/building managers, contact Allied Universal, Inc. Our new Version 2.0 e-based training system offers the best emergency training system with automated and integrated features. Visit rjwestmore.com for more information and remember to BE SAFE.

Hurricane Communications

Monday, August 23rd, 2010
Communication is Key in Any Emergency

Communication is Key in Any Emergency

Second in a Series about Hurricane Preparedness and Recovery

Hurricanes are unique emergencies in that they are predictable. So there is no excuse for failing to prepare to respond with decisive action. Although you can’t control when a hurricane or other emergency may happen, it’s imperative that you take personal responsibility to make sure you are ready.  This week, in our continuing series about hurricanes, we’ll look at one of the best ways to prepare for and recover after tropical storms and hurricanes—developing a comprehensive Communications Plan.

Although there is no easy answer—or “silver bullet”—to solve every problem that can hamper the efforts of law enforcement, firefighting, rescue and emergency medical personnel before, during and after natural disasters, the surest way to reduce confusion and quickly restore order is to establish a Communications Plan before you need one.

But what exactly is a Communications Plan?

An Emergency Communications’ Plan outlines formal decision-making structures and clearly defined leadership roles necessary for coordinating emergency communications’ capabilities. In other words, make sure you plan in advance to manage any and every emergency situation. Assess the situation and use common sense and available resources to take care of yourself and your co-workers or family members and to manage the recovery of your family or organization.

To help you with the process, FEMA has put together free resources including a Family Emergency Plan as well as a Business Continuity and Disaster Preparedness Plan, which is posted online for easy-access to clients of the Allied Universal, Inc. Training System. The business plan is designed to encourage you to gather emergency information and formalize plans for staying in business following a disaster, and includes information critical for coordinating with neighboring businesses, cooperating with emergency personnel and considering critical operations, staff and procedures.

Other organizations also provide free emergency resources. For example, The American Red Cross has a Safe and Well Website to help families keep in touch after a disaster. If you have been affected by a disaster, this website provides a way for you to register yourself as “safe and well.” From a list of standard messages, you can select those that you want to communicate to your family members, letting them know of your well-being. Other communication services available on the Safe and Well website:

  • USPS, which provides continuing mail service for those displaced by disasters through change of address forms.
  • National Next of Kin Registry, an organization where the public can archive emergency point of contact information. Emergency agencies access the system when there is a need to locate next of kin in urgent situations.
  • Community Voice Mail, which offers free personalized phone numbers with voicemail to people in crisis and transition for job search, housing, healthcare and family contact.
  • Contact Loved Ones, which is a free voice message service, accessible from any phone, to reestablish contact between those affected by a disaster and their loved ones and friends.

Also, at the state and local level, you should be able to access additional information specific to your geographical location. One such resource is put out by the National Oceanic and Atmospheric Administration (NOAA). And weather advisories are put out by the National Hurricane Center.

When a disaster strikes, prior planning and clear decisive action can help save lives. For the latest emergency management training for facility/building managers, contact Allied Universal, Inc. Check back next week, when we will continue our series about hurricane safety and preparation. In the meantime, BE SAFE.