The Tsunami Map Viewer returns a map with Tsunami Evacuation
Zones based on information that you enter.
Zones based on information that you enter.
| ATTENTION:
If you are in the tsunami evacuation zone or a low-lying coastal area during a strong earthquake get to high ground outside of the tsunami evacuation zone immediately; a tsunami could reach the shore within minutes.
Steel and/or concrete buildings of six or more stories should provide adequate protection if people move above the third floor. If you are in a boat in a bay or harbor, get on land immediately and evacuate to higher ground. If you are in a ship at sea head to deep water (1200 feet or 200 fathoms) if there is time to safely do so. Sufficiently deep water may range from 10 to 40 nautical miles offshore depending on your location. If emergency officials issue a Tsunami Warning, get to higher ground outside of the tsunami evacuation zone immediately. Before returning to the evacuation zone, wait for the *All Clear* signal from emergency officials. |
Legend
 Tsunami Evacuation Zones  Unmapped Regions |
|
Click HERE to print this web page Important Map Notes These tsunami evacuation zone maps represent the best information available at this time. The Oregon Department of Geology and Mineral Industries (DOGAMI), with funding from the NOAA National Tsunami Hazard Mitigation Program, is currently using the latest scientific techniques and technology to improve this information. Everyone is urged to apply common sense when using these maps. If you live or work just outside an evacuation zone marked as the shaded area on the map prudence would dictate that you consider evacuating during a tsunami warning. |
You cannot prevent a tsunami but you can be prepared for one. Actions you take now
could save your life and the lives of your friends and family in an emergency.
Develop an emergency plan
|
How you will contact one another? |
|
|
How you will get back together? |
|
|
What you will do in different situations? |
Developing a family emergency plan will provide your family with information that could save lives and protect property.
| Make a Family Emergency Plan |
|
| Emergency Preparedness Checklist |
|
Assemble an Emergency Preparedness Kit
Emergency preparedness kits should contain the essentials your family needs to survive during a disaster. It may take 72 hours or more for emergency personnel to reach you. Don't wait, hundreds of other families in your area share the same concerns, and it will be difficult to get access to the necessities you need due to shortages and competition.
Emergency preparedness kits should contain the essentials your family needs to survive during a disaster. It may take 72 hours or more for emergency personnel to reach you. Don't wait, hundreds of other families in your area share the same concerns, and it will be difficult to get access to the necessities you need due to shortages and competition.
| Recommendations For Disaster Preparedness Kit |
|
| Emergency Preparedness Kit |
|
Plan for Evacuation
|
|
If you live or work in a tsunami evacuation zone identify an evacuation route from your home or workplace. Identify a safe area outside the evacuation zone where you and others can safely congregate. |
|
|
After an earthquake, roads may become impassable or blocked so be prepared to evacuate by foot if necessary. Once you know your route develop the plan to evacuate. Consider securing your property, collecting pets, turning off the electricity and water, and bringing essential documents and emergency supplies. |
|
|
Practice this evacuation plan with others so when there is a tsunami all are prepared to act. |
CURRENT TSUNAMI BULLETINS FOR OREGON - NOAA West Coast and Alaska Tsunami Center
Know the Natural Warning Signs of Tsunami
|
|
Strong local earthquakes may cause tsunamis - If the shaking causes you to fall or have difficulty standing, this is your first natural tsunami warning sign. Protect yourself from the earthquake effects and when the shaking stops, leave the evacuation zones immediately. |
|
|
Receding water - As a tsunami approaches the shoreline, it could possibly expose the ocean floor, reef, and fish. |
|
|
Seeing or hearing the water - You might see an approaching wall of water and/or hear a load roaring sound similar to that of a train or jet aircraft. |
| Sensing a Tsunami |
|
Tsunami Warnings
|
|
Tsunami Warning
|
|
|
|
|
|
|
|
|
To learn more about the tsunami warning system visit the NOAA Tsunami Website
Emergency Information
The Oregon State Emergency Alert System (EAS) is used to notify the public of a possible approaching tsunami. A steady three minute siren tone is the attention alert signal. Turn on the nearest radio or television and listen for emergency information and instructions.
In some cases not all radio or television stations may be able to transmit. As part of the EAS particular radio stations have been designated as primary sources for information. Click the link below to find out more about these stations.
Oregon EAS radio stations
The Oregon State Emergency Alert System (EAS) is used to notify the public of a possible approaching tsunami. A steady three minute siren tone is the attention alert signal. Turn on the nearest radio or television and listen for emergency information and instructions.
In some cases not all radio or television stations may be able to transmit. As part of the EAS particular radio stations have been designated as primary sources for information. Click the link below to find out more about these stations.
Oregon EAS radio stations
The State and County Civil Defense Agencies test the EAS at 11:15 a.m. on the first workday
of the month. When you hear the test sirens or your radio or television program is interrupted
this is your opportunity to think about what you will do when it is not a test.
| Oregon Emergency Management |
|
If you are in a low lying area near the coast or in the tsunami evacuation zone during a strong earthquake, get to high ground outside of the tsunami evacuation zone immediately, a dangerous
tsunami could reach the shore within minutes.
|
|
Strong local earthquakes may cause tsunamis - If the shaking causes you to fall or have difficulty standing, this is your first natural tsunami warning sign. Protect yourself from the earthquake effects and when the shaking stops, leave the evacuation zone immediately. |
|
|
If local emergency officials order an evacuation in response to a Tsunami Warning, follow the directions of local emergency officials or get to high ground outside of the tsunami evacuation zone immediately. Before returning to the evacuation zone, wait for the All Clear signal from emergency officials. |
|
|
Concrete and/or steel reinforced building of 6 or more stories that are not damaged by earthquakes should also provide safe shelter above the third floor. |
|
|
Remain outside the zone until the "All Clear" signal has been issued by local emergency officials. |
|
|
In the event of a distant tsunami local emergency officials may order an evacuation in response to a National Weather Service tsunami warning. If an evacuation is ordered, follow the directions of local emergency officials or get to higher ground outside of the tsunami evacuation zone immediately. If you have access to a concrete and/or steel reinforced building of 6 or more stories, move above the third floor. Before returning to the evacuation zone, wait for the All Clear signal from emergency officials. |
|
|
In most situations the fastest and safest way to move out of the tsunami evacuation zone may be on foot rather than by car. After an earthquake many roads may be impassable by car, and traffic congestion and gridlock may block evacuation routes and lead to unnecessary accidents. |
|
|
If located outside a tsunami evacuation zone, stay outside of the evacuation zone and limit all non-emergency travel. Do not use your telephone or cell phone except for emergencies. |
|
|
All public schools in tsunami evacuation zones have emergency evacuation plans in place in the event of a Tsunami Warning. |
|
|
Have preparations in place to care for your pets in case you are ordered to evacuate. Contact your veterinarian or the Oregon Humane Society for more information on pet arrangements. |
|
|
Your family may not be together when disaster strikes, so it is important to plan in advance. Make a family emergency plan. |
See your local emergency preparedness agency for specific information on tsunami shelters and
other specific evacuation instructions for your community.
Clatsop County Sheriff's Office, Emergency Services Division
Coos County Emergency Services
Curry County Emergency Services
Douglas County Emergency Services
Lane County Emergency Management
Lincoln County Emergency Services
Tillamook County Emergency Management
American Red Cross, Oregon Trail Chapter, Emergency Services
Department of State Police, Oregon Emergency Management
To reduce your risk you must first understand the tsunami threat.
A tsunami (Japanese for harbor waves) is a series of ocean waves produced by a sudden rise or fall in the earths crust, most commonly caused by an earthquake or underwater landslide. In the open ocean tsunami waves cannot be seen or felt by ships or airplanes because the unbreaking waves are actually
hundreds of miles wide with a height of only a few feet. But as the waves approach the coast their
height increases dramatically and can be very destructive when they reach the shore. To learn more about tsunamis visit these links:
DOGAMI Tsunami Hazards in Oregon Fact Sheet
NOAA Tsunami Website
NOAA Tsunami Fact Sheet
DOGAMI Tsunami Hazards in Oregon Fact Sheet
NOAA Tsunami Website
NOAA Tsunami Fact Sheet
Understand the Threat
Locally generated tsunamis resulting from earthquakes or landslides can arrive at the Oregon coast within minutes, even before a warning can be issued. If you are near the shore and feel the ground shake, move inland to higher ground immediately. Oregon is also vulnerable to Pacific-wide tsunamis. These tsunamis result from distant earthquakes and/or landslides in places like Chile, Alaska, and Japan and can arrive on the Oregon coast within hours.
To understand your individual risk, find out if the places you and your family live and work are in or near the tsunami evacuation zones. These maps are available from this website. To learn about historical tsunamis that have impacted coastlines around the Pacific Ocean, visit the following websites:
|
|
All low-lying coastal areas, harbors, streams, and rivers in Oregon are vulnerable to tsunami impacts. |
|
|
Tsunamis can occur at anytime. Earthquakes and/or landslides that may trigger tsunamis cannot be forecasted. |
Locally generated tsunamis resulting from earthquakes or landslides can arrive at the Oregon coast within minutes, even before a warning can be issued. If you are near the shore and feel the ground shake, move inland to higher ground immediately. Oregon is also vulnerable to Pacific-wide tsunamis. These tsunamis result from distant earthquakes and/or landslides in places like Chile, Alaska, and Japan and can arrive on the Oregon coast within hours.
To understand your individual risk, find out if the places you and your family live and work are in or near the tsunami evacuation zones. These maps are available from this website. To learn about historical tsunamis that have impacted coastlines around the Pacific Ocean, visit the following websites:
Locally Generated Tsunamis
Locally generated tsunamis can arrive along our coastline within minutes of a significant earthquake. Earthquakes and landslides off the Washington, Oregon, or California coasts pose a serious local tsunami hazard for Oregon.
Locally generated tsunamis can arrive along our coastline within minutes of a significant earthquake. Earthquakes and landslides off the Washington, Oregon, or California coasts pose a serious local tsunami hazard for Oregon.
Distant Source Tsunamis
Distant source tsunamis may take several hours to arrive on Oregon's shores. The Alaskan Good Friday, March 28, 1964, earthquake had a moment magnitude of 9.2. The death toll in Alaska from this event was 115 people, with 106 of the deaths due to tsunamis. This tsunami also struck the Oregon coastline, killing four people and causing nearly $1 million damage (in 1964 dollars). The highest officially measured tsunami wave was 14.2 feet at the mouth of the Umpqua River. When the same tsunami struck Crescent City, California, the maximum wave height was 14 feet, 11 people were killed, and approximately $8 million of damage was done. Heights of tsunami waves generated by nearby earthquakes could be much higher.
Distant source tsunamis may take several hours to arrive on Oregon's shores. The Alaskan Good Friday, March 28, 1964, earthquake had a moment magnitude of 9.2. The death toll in Alaska from this event was 115 people, with 106 of the deaths due to tsunamis. This tsunami also struck the Oregon coastline, killing four people and causing nearly $1 million damage (in 1964 dollars). The highest officially measured tsunami wave was 14.2 feet at the mouth of the Umpqua River. When the same tsunami struck Crescent City, California, the maximum wave height was 14 feet, 11 people were killed, and approximately $8 million of damage was done. Heights of tsunami waves generated by nearby earthquakes could be much higher.
|
This site has been developed by the Oregon Department of Geology and Mineral Industries in partnership with Oregon Emergency Management from a template provided by the National Oceanic and Atmospheric Administration (NOAA). For feedback, email DOGAMI |
|