Latest news with #WarningSystem
Yahoo
30-07-2025
- Climate
- Yahoo
What is a tsunami warning? What to know after huge earthquake.
An earthquake powerful enough to rank among the top 10 strongest earthquakes on record struck off the coast of Russia on July 29, triggering a series of tsunami warnings and watches. The earthquake measured an incredible magnitude of 8.8. For context, the Michigan Technological University says magnitude 8.0 or greater earthquakes can cause massive damage and destroy communities. The U.S. Tsunami Warning System ( will be updating its guidance as experts learn more about the threat, including maps showing what areas face what risks. In the minutes and hours after a major earthquake, tsunami assessments change as researchers track data from buoy and other interments. Latest updates: Live coverage of Tsunami risk after 8.8 earthquake off Russia Here's what each of the alert levels mean, according to the agency: Tsunami Warning: Take Action—Danger! A tsunami that may cause widespread flooding is expected or occurring. Dangerous coastal flooding and powerful currents are possible and may continue for several hours or days after initial arrival. Follow instructions from local officials. Evacuation is recommended. Move to high ground or inland (away from the water). Tsunami Advisory: Take Action—A tsunami with potential for strong currents or waves dangerous to those in or very near the water is expected or occurring. There may be flooding of beach and harbor areas. Stay out of the water and away from beaches and waterways. Follow instructions from local officials. Tsunami Watch: Be Prepared—A distant earthquake has occurred. A tsunami is tuned for more information. Be prepared to take action if necessary. Tsunami Information Statement: Relax—An earthquake has occurred, but there is no threat or it was very far away and the threat has not been determined. In most cases, there is no threat of a destructive tsunami. People who live along the coast can check information from their local emergency management offices to get information for their region and risks. Map shows Tsunami warnings, watches How does NOAA track tsunamis? A real-time tsunami monitoring system created by the Pacific Marine Environmental Laboratory in Washington placed buoys at strategic locations throughout the ocean that play a critical role in tsunami forecasting, according to the National Oceanic and Atmospheric Administration. The buoys are named DART, for Deep-ocean Assessment and Reporting of Tsunamis. When a tsunami event occurs, the first information available is the seismic information from the preceding earthquake, according to NOAA. As the tsunami wave moves across the ocean, it reaches the DART systems, which report sea level information measurements to the Tsunami Warning Centers. That buoy data is used to refine estimates of the tsunami source and to make the forecasts for watches, warnings and evacuations. The Pacific Marine Environmental Laboratory is working on a third generation of the buoy system, but the laboratory is one of those proposed to be closed under the budget NOAA has proposed for the coming year. Where does the Russian earthquake rank? If the 8.8 magnitude remains after a final review, the earthquake would be tied for the 6th most powerful with an earthquake in Chile on Feb. 27, 2010 and an earthquake near the coast of Ecuador on Jan. 31, 1906. The largest earthquake in history, the Validivian Earthquake, occurred on May 22, 1960 and measured at a magnitude of 9.5 off the coast of Chile. (This story has been updated to add new information.) Contributing: Dinah Voyles Pulver and Jeanine Santucci, USA TODAY This article originally appeared on USA TODAY: What is a tsunami warning? Watches and warnings explained.
Yahoo
30-07-2025
- Climate
- Yahoo
What is a tsunami warning? What to know after huge earthquake.
An earthquake powerful enough to rank among the top 10 strongest earthquakes on record struck off the coast of Russia on July 29, triggering a series of tsunami warnings and watches. The earthquake measured an incredible magnitude of 8.8. For context, the Michigan Technological University says magnitude 8.0 or greater earthquakes can cause massive damage and destroy communities. The U.S. Tsunami Warning System ( will be updating its guidance as experts learn more about the threat, including maps showing what areas face what risks. In the minutes and hours after a major earthquake, tsunami assessments change as researchers track data from buoy and other interments. Latest updates: Live coverage of Tsunami risk after 8.8 earthquake off Russia Here's what each of the alert levels mean, according to the agency: Tsunami Warning: Take Action—Danger! A tsunami that may cause widespread flooding is expected or occurring. Dangerous coastal flooding and powerful currents are possible and may continue for several hours or days after initial arrival. Follow instructions from local officials. Evacuation is recommended. Move to high ground or inland (away from the water). Tsunami Advisory: Take Action—A tsunami with potential for strong currents or waves dangerous to those in or very near the water is expected or occurring. There may be flooding of beach and harbor areas. Stay out of the water and away from beaches and waterways. Follow instructions from local officials. Tsunami Watch: Be Prepared—A distant earthquake has occurred. A tsunami is tuned for more information. Be prepared to take action if necessary. Tsunami Information Statement: Relax—An earthquake has occurred, but there is no threat or it was very far away and the threat has not been determined. In most cases, there is no threat of a destructive tsunami. People who live along the coast can check information from their local emergency management offices to get information for their region and risks. Map shows Tsunami warnings, watches How does NOAA track tsunamis? A real-time tsunami monitoring system created by the Pacific Marine Environmental Laboratory in Washington placed buoys at strategic locations throughout the ocean that play a critical role in tsunami forecasting, according to the National Oceanic and Atmospheric Administration. The buoys are named DART, for Deep-ocean Assessment and Reporting of Tsunamis. When a tsunami event occurs, the first information available is the seismic information from the preceding earthquake, according to NOAA. As the tsunami wave moves across the ocean, it reaches the DART systems, which report sea level information measurements to the Tsunami Warning Centers. That buoy data is used to refine estimates of the tsunami source and to make the forecasts for watches, warnings and evacuations. The Pacific Marine Environmental Laboratory is working on a third generation of the buoy system, but the laboratory is one of those proposed to be closed under the budget NOAA has proposed for the coming year. Where does the Russian earthquake rank? If the 8.8 magnitude remains after a final review, the earthquake would be tied for the 6th most powerful with an earthquake in Chile on Feb. 27, 2010 and an earthquake near the coast of Ecuador on Jan. 31, 1906. The largest earthquake in history, the Validivian Earthquake, occurred on May 22, 1960 and measured at a magnitude of 9.5 off the coast of Chile. (This story has been updated to add new information.) Contributing: Dinah Voyles Pulver and Jeanine Santucci, USA TODAY This article originally appeared on USA TODAY: What is a tsunami warning? Watches and warnings explained.
Scientific American
30-07-2025
- Science
- Scientific American
Tsunami Warnings Issued After Magnitude 8.7 Earthquake Strikes Off Russian Coast
1 min read Tsunami warnings and advisories were issues around the Pacific Ocean after a magnitude-8.7 earthquake struck off the coast of Russia, the largest earthquake since the 2011 Japan earthquake and resulting tsunami By Andrea Thompson edited by Tsunami warnings have been issued around the Pacific Ocean after a magnitude 8.7 earthquake struck off the coast of Russia's Kamchatka Peninsula in the late morning local time on July 30. The earthquake may be the eighth largest on record globally, seismologist Alice-Agnes Gabriel of the Scripps Institution of Oceanography, wrote on Bluesky. It is likely the largest since the one that struck off the coast of Japan in 2011, triggering a devastating tsunami that killed thousands and caused the disaster the Fukushima Daiichi nuclear power plant. Evacuations have been ordered in Japan and Hawaii after the July 30 earthquake. The U.S. Tsunami Warning System has issued warnings for Hawaii and along the Aleutian Islands. Advisories have been issued for the rest of the Alaska coastline and the rest of the Pacific Coast of the U.S. On supporting science journalism If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today. The earthquake happened in a subduction zone at the Kuril-Kamchatka Arc, where the Pacific plate is being subducted under the Okhotsk plate. The epicenter is located 45 kilometers southeast of where a magnitude-9.0 temblor struck in 1952 and caused "a destructive, Pacific-wide tsunami," according to the U.S. Geological Survey. A magnitude-7.4 earthquake that struck in the same region on July 20, 2025, would be considered a foreshock to the July 30 quake, the U.S.G.S. says.
Hindustan Times
27-07-2025
- Climate
- Hindustan Times
Short rain spell in Delhi; temperature likely to drop: IMD
Parts of Delhi received scattered rain shortly after midnight on Saturday, followed by a mostly cloudy morning that gradually cleared into a sunny afternoon and a bright evening, with temperatures slightly lower than the previous day. The air quality also improved, returning to the 'satisfactory' category on Saturday. The India Meteorological Department (IMD) has forecast very light to light rain on Sunday along with a further dip of several degrees in both maximum and minimum temperatures by Monday. (Sunil Ghosh/HT Photo) The India Meteorological Department (IMD) has forecast very light to light rain on Sunday along with a further dip of several degrees in both maximum and minimum temperatures by Monday. 'Very light to light rain may occur in several parts of the city on Sunday. There are chances of moderate rain in Delhi on Monday due to a depression moving towards the north-northwest border of Madhya Pradesh. So we may see significant rain next week in western Uttar Pradesh, Haryana, Punjab and Delhi. This might bring the maximum temperature of the Capital down by a few notches,' said Mahesh Palawat, vice president at Skymet. Only trace rainfall was recorded by the Safdarjung and Palam weather stations between 11.30pm on Friday and 2.30 am on Saturday. In the same period, Ayanagar recorded 23mm rain and Ridge 0.4mm rain. No significant rain was recorded after that till 8.30am, and none between 8.30am and 5.30pm, according to data by the Met department. According to IMD, up to 15.5 mm of rainfall is considered light rainfall, 15.6mm to 64.4 mm is considered moderate rainfall, 64.5mm to 115.5mm is considered heavy rainfall and 115.6 mm to 204.4 mm is considered very heavy rainfall. Delhi's minimum temperature dropped by a degree and was clocked at 27 degrees Celsius (°C) on Saturday. The maximum temperature was recorded at 36.8°C, 1.9°C below the normal and lower than 36.9°C recorded on Friday. According to IMD, the maximum temperature is expected to drop to 31-33°C by Monday and 30-32°C by Tuesday. The minimum is also expected to go down by a couple of degrees. Delhi's air quality improved back to the 'satisfactory' category by Saturday and the 24-hour average air quality index (AQI) was logged at 84 (satisfactory) at 4pm, as compared to 136 (moderate) on Friday, according to the Central Pollution Control Board. Forecasts by the Air Quality Early Warning System (AQEWS) for Delhi suggest that AQI is likely to stay in the 'satisfactory' category for the next few days. 'The air quality is likely to be in the satisfactory category from Sunday to Tuesday. The outlook for the next six days is that the air quality is likely to be in the satisfactory to moderate category,' the AQEWS bulletin said on Saturday evening.
Al Arabiya
09-02-2025
- Climate
- Al Arabiya
A 7.6-magnitude quake shakes Caribbean, tsunami warnings lifted
A magnitude 7.6 quake rattled the Caribbean Sea on Saturday about 130 miles (209 kilometers) off the coast of the Cayman Islands, triggering tsunami warnings that were later lifted, US monitoring agencies said. The temblor struck at a shallow depth, the US Geological Survey said. 'Based on all available data... the tsunami threat from this earthquake has passed and there is no further threat,' the US Pacific Tsunami Warning Center said. Earlier, the Tsunami Warning System had said waves as high as nearly 10 feet (three meters) were possible in some coastal areas of Cuba, while waves of up to three feet could hit Honduras and the Cayman Islands. The Cayman Islands government had warned residents of coastal areas to move inland in a message on its website. The initial tsunami threat warning included more than a dozen countries. About three hours after the earthquake, US authorities warned that 'minor sea level fluctuations' of up to 30 centimeters (11.8 inches) could still occur, but that any serious threat had passed. A tsunami measuring gauge at Isla Mujeres, on Mexico's eastern coast, measured a wave with a maximum height of four centimeters (0.1 feet) after the earthquake, the US tsunami warning center said.
