Showing posts with label magnitude. Show all posts
Showing posts with label magnitude. Show all posts

Monday, February 6, 2012

Mag 6.7 Quake Hits Philippines - Tsunami Warning

Magnitude 6.7 Earthquake 
in Philippines
Prompts Tsunami Warning


The 6.7-magnitude quake hit in a narrow strait just off Negros Island. The Philippine Institute of Volcanology and Seismology issued the local tsunami alert for central islands, saying the quake could trigger a 3ft wave along the island's eastern coast as well as west of the country's second-largest city, Cebu.

Note: the PTWC did not expect a Pacific-wide tsunami as a result of the quake and no warning was issued.
The epicentere was closest to Tayasan, a coastal town of about 32,000 people flanked by mountains in Negros Oriental province.

According to Benito Ramos, head of the Office of Civil Defense, a child there died when a concrete fence of a house collapsed.  Due to the aftershocks, it was too dangerous for authorities to search buildings, so the number is expected to rise.


UPDATE:  At least 43 people killed, 40 missing and 100 injured, many buildings damaged or destroyed, at least 9 bridges damaged and some landslides occurred in Negros Oriental.


Magnitude6.7
Date-Time
Location9.964°N, 123.246°E
Depth20 km (12.4 miles)
RegionNEGROS - CEBU REGION, PHILIPPINES
Distances72 km (44 miles) N of Dumaguete, Negros, Philippines
74 km (45 miles) WNW of Tagbilaran, Bohol, Philippines
80 km (49 miles) WSW of Cebu, Cebu, Philippines
569 km (353 miles) SSE of MANILA, Philippines
Location Uncertaintyhorizontal +/- 13.5 km (8.4 miles); depth +/- 11.5 km (7.1 miles)
ParametersNST= 72, Nph= 75, Dmin=744.7 km, Rmss=1.03 sec, Gp= 43°,
M-type=regional moment magnitude (Mw), Version=8
Source
  • Magnitude: USGS NEIC (WDCS-D)
    Location: USGS NEIC (WDCS-D)
Event IDusb0007wgq

Wednesday, July 6, 2011

Massive New Zealand Quake and Tsunami Alert



Magnitude 7.6 Earthquake

KERMADEC ISLANDS REGION

2011 July 06 19:03:16 UTC 

PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS
ISSUED AT 1959Z 06 JUL 2011 
 
... TSUNAMI WARNING CANCELLATION ...

THE TSUNAMI WARNING AND/OR WATCH ISSUED BY THE PACIFIC TSUNAMI
WARNING CENTER IS NOW CANCELLED FOR

 KERMADEC IS / TONGA / NEW ZEALAND  
 
Source: Pacific Tsunami Warning Center (PTWC)


New Zealand civil defense authorities canceled a tsunami warning on Thursday but warned of possible stronger than normal ocean currents around the east coast of the country after a magnitude 7.8 earthquake struck in the Pacific Ocean north east of the country.

There is no damage or injury reported as  a result of this earthquake.  A small research party had been on Raoul Island at the time of the quake and have been reported safe.

Magnitude7.6
Date-TimeWednesday, July 06, 2011 at 19:03:16 UTC
Thursday, July 07, 2011 at 07:03:16 AM at epicenter
Time of Earthquake in other Time Zones
Location29.312°S, 176.204°W
Depth20 km (12.4 miles)
RegionKERMADEC ISLANDS REGION
Distances163 km (101 miles) E of Raoul Island, Kermadec Islands
347 km (215 miles) NE of L'Esperance Rock, Kermadec Islands
913 km (567 miles) S of NUKU`ALOFA, Tonga
1185 km (736 miles) NE of Auckland, New Zealand
Location Uncertaintyhorizontal +/- 14.1 km (8.8 miles); depth +/- 4.4 km (2.7 miles)
ParametersNST=620, Nph=625, Dmin=168.1 km, Rmss=1.02 sec, Gp= 18°,
M-type=teleseismic moment magnitude (Mw), Version=B
SourceUSGS NEIC (WDCS-D)
Event IDusc0004pbm

Monday, April 11, 2011

Strong Quakes Continue to Rattle Japan



Click HERE for NOAA Latest Event Map

Strong aftershocks continue to strike in Northeast Japan.  The latest quake measured in at 7.0M originally but was downsized to 6.6M by the USGS.   This quake was only 100 miles from Tokyo, Japan.

Latest Earthquakes in the World - Past 7 days (click link for USGS data)





Magnitude6.6
Date-Time
Location37.007°N, 140.477°E
Depth10 km (6.2 miles)
RegionEASTERN HONSHU, JAPAN
Distances36 km (22 miles) W of Iwaki, Honshu, Japan
44 km (27 miles) SSE of Koriyama, Honshu, Japan
71 km (44 miles) N of Mito, Honshu, Japan
161 km (100 miles) NNE of TOKYO, Japan

Event ID   usc0002n9v 
Source      USGS NEIC (WDCS-D)



Cruise lines have already altered itineraries for most of this year due to the previous earthquake, tsunami, and the resulting nuclear crisis.  Consult your cruise line's website for latest updates.
We will provide updates if specific details are released as a result of the ongoing disasters.


General Tsunami Information



Related Blog Posts: 

Cruise Lines Return to Japan  (six months later, some cruise lines have returned)
 

Thursday, April 7, 2011

Another Strong Quake Hits Japan



Magnitude 7.1 - NEAR THE EAST COAST OF HONSHU, JAPAN

2011 April 07 14:32:41 UTC

The 7.1 magnitude quake hit about 11:30 p.m. Thursday Japan time.  About a month ago, March 11th, the powerful 9.0 quake hit off the northeastern coast of Japan triggering a tsunami and causing massive loss of life and destruction to property.    Since that time, there have been more than 1,000 aftershocks.   The one on Thursday was the strongest since the 7.9 that occurred the same day as the first earthquake.This quake was first reported as a magnitude 7.4 but later downgraded by the USGS in Colorado.

Buildings shook for about a minute as far away as Tokyo, but there were no immediate reports of injuries.   Workers at the nuclear power plant were evacuated to a safe location within the complex.


Magnitude7.1
Date-Time
Location38.253°N, 141.640°E
Depth49 km (30.4 miles)
RegionNEAR THE EAST COAST OF HONSHU, JAPAN
Distances66 km (41 miles) E of Sendai, Honshu, Japan
114 km (70 miles) E of Yamagata, Honshu, Japan
116 km (72 miles) ENE of Fukushima, Honshu, Japan
330 km (205 miles) NNE of TOKYO, Japan

Source:  USGS NEIC (WDCS-D)
Event ID  usc0002ksa       (click event id  for more details)








The resulting tsunami warning was canceled 90 minutes after the earthquake, however the danger isn't necessarily over as there still could be destructive waves in the immediate vicinity.



Cruise lines have already altered itineraries for most of this year due to the previous earthquake, tsunami, and the resulting nuclear crisis.  Consult your cruise line's website for latest updates.
We will provide updates if specific details are released as a result of the ongoing disasters.

General Tsunami Information



Related Blog Posts: 

Cruise Lines Return to Japan  (six months later, some cruise lines have returned)
 

Tuesday, February 22, 2011

Major Christchurch Earthquake Impacts Cruise Schedules

Cunard Line's QM2 and Queen Elizabeth in Sydney Feb 22
Royal Rendevous Overshadowed by 
Major Earthquake

Cruise ship calls at Christchurch, New Zealand, are being cancelled following this week's devastating earthquake, which measured 6.3 on the Richter scale and destroyed large areas of the city and suburbs.    

At least 65 people have been killed, making this New Zealand's worst disaster in more than 80 years.  The suburb of Lyttelton, where cruise ships dock, has suffered infrastructure damage.


Our hearts and prayers go out to all the people of New Zealand impacted by this natural disaster.  This post provides links to sites with additional information.  We will attempt to provide updates to assist those who might be traveling in the region.
Graphic courtesy USGS

Magnitude 6.3 – South Island of New Zealand

Monday, February 21, 2011 at 23:51:43 UTC
Tuesday, February 22, 2011 at 12:51:43 Local

The February 21, 2011 South Island, New Zealand earthquake occurred as part of the aftershock sequence of the M 7.0 September 3, 2010 Darfield, NZ earthquake. 


This latest shock is significantly closer to the main population center of Christchurch, NZ, than is the September 2010 mainshock. The February 21st earthquake represents the largest aftershock to date.

The National Crisis Management Centre has been activated and a National State of Emergency has been declared (www.beehive.govt.nz). 

Peak Cruise Season for Australia & New Zealand

This is the peak season for cruise vacations to Australia and New Zealand.   Cruise itinerary changes are anticipated in the wake of the quake.   Cruise lines are responsible for health and safety of their guests.    Any changes that are made are done so regrettably, but unfortunately become necessary when conditions prevent planned port calls to be made.

Lyttleton Port of Christchurch posted the following statement:  "The 6.3 magnitude earthquake on Tuesday 22 February caused further damage to Lyttelton Port of Christchurch infrastructure and facilities.  Our priority is for the safety of all staff and we can advise that fortunately there were no injuries sustained at the port."   Read more on their webpage.

Cruise Itinerary Changes - Christchurch
  • Cunard Line: QM2 will call at Wellington (Feb. 26)
  • Holland America: Volendam (Mar. 5) - no changes yet - monitoring situation
  • Princess Cruises: Sun Princess (Feb. 28) - extending stay in Wellington then three hours of scenic cruising Marlborough Sound
  • Princess Cruises: Dawn Princess (Mar. 4) - no changes yet - monitoring situation
  • P&O Cruises Australia: Pacific Sun will call at Akaroa (Feb. 25)
  • P&O Cruises Australia: Aurora (Mar. 7) - no changes yet - monitoring situation
Cunard president Peter Shanks, who was in Sydney for the rendezvous of QM2 and Queen Elizabeth, said (that Cunard would be) "doing all it can to support the devastated port city."

We will provide updates as more information becomes available 
Last Updated:  23 Feb -  9 PM Est

Useful Links for Additional Information

Saturday, February 27, 2010

Powerful Quake Hits Chile Tsunami Alert

Source: USGS, NEIC
Magnitude 8.8 Earthquake
Offshore Maule, Chile

Saturday, February 27, 2010
03:34:14 AM at epicenter



A powerful Magnitude 8.8 Earthquake hit offshore Maule, Chile early Saturday morning damaging buildings, bridges, and vehicles while causing severe injury and death in its path. President-elect Sebastian Pinera said more than 120 people died, but that number was rising quickly.



A series of after shocks continues to strike the continent of South America. The quake shook buildings in Argentina's capital of Buenos Aires, and was felt as far away as Sao Paulo in Brazil — 1,800 miles (2,900 kilometers) to the east.

Charities and governments of the world have mobilized to provide humanitarian aide to Chile. Our thoughts and prayers go out to the people impacted by this tragedy.

(see below for impact on cruise ships)


THIS BULLETIN APPLIES TO AREAS WITHIN AND BORDERING THE PACIFIC OCEAN AND ADJACENT SEAS...


This energy map provided courtesy of
West Coast & Alaska Tsunami Warning Center

NOAA Interactive map (click here)

UPDATE: Sunday, February 28th
TSUNAMI WARNINGS LIFTED


As the tsunami waves, generated by the Chile earthquake, reached the shores of Japan and Russia there was a sigh of relief across the globe. The waves were smaller than expected causing minimal flooding in most cases.


A WIDESPREAD TSUNAMI WARNING
IS IN EFFECT FOR ...

CHILE / PERU / ECUADOR / COLOMBIA / ANTARCTICA / PANAMA /
COSTA RICA / NICARAGUA / PITCAIRN / HONDURAS / EL SALVADOR /
GUATEMALA / FR. POLYNESIA / MEXICO / COOK ISLANDS / KIRIBATI /
KERMADEC IS / NIUE / NEW ZEALAND / TONGA / AMERICAN SAMOA /
SAMOA / JARVIS IS. / WALLIS-FUTUNA / TOKELAU / FIJI /
AUSTRALIA / HAWAII / PALMYRA IS. / TUVALU / VANUATU /
HOWLAND-BAKER / NEW CALEDONIA / JOHNSTON IS. /
SOLOMON IS. /NAURU / MARSHALL IS. / MIDWAY IS. / KOSRAE /
PAPUA NEW GUINEA /POHNPEI / WAKE IS. / CHUUK / RUSSIA /
MARCUS IS. / INDONESIA /N. MARIANAS / GUAM / YAP / BELAU /
JAPAN / PHILIPPINES /CHINESE TAIPEI

RSS feeds have been added (right column) bringing you latest updates from the
Pacific Tsunami Warning Center.

Hawaii Under Tsunami Warning

UPDATE:
THE TSUNAMI WARNING IS CANCELLED FOR THE STATE OF HAWAII EFFECTIVE AT 0138 PM HST. (more information)

A tsunami has been generated as a result of the quake in Chile. The tsunami could cause damage along coastlines of all islands in the state of Hawaii. Urgent action should be taken to protect lives and property.



THE ESTIMATED ARRIVAL TIME IN HAWAII
OF THE FIRST TSUNAMI WAVE IS


1105 AM HST SAT 27 FEB 2010

Tsunami warning sirens awakened residents and tourists in Hawaii, Polynesia, and Tonga this morning. We received a report from friends in Maui that the first waves aren't expected until around 11 AM HST (4 PM EST), so they have plenty of time to head for higher ground. Stores were crowded early this morning as residents gathered emergency supplies.

Hilo airport to close; other airports remain open

Hawaii could face its largest waves since 1964 according to Charles McCreery, director of the Pacific Tsunami Warning Center. Officials evacuated people and boats near the water and closed shore-side Hilo International Airport at 6 A.M. today in conjunction with preparations for the arrival of a possible tsunami. Anyone with flights booked to Hilo are advised to contact their airline.

Other state airports remain open at this time and flight operations have not been impacted.

French Polynesia on tsunami alert after Chile quake

The first wave was expected to hit the French Polynesian Gambier islands at 1550 GMT, then Tahiti at 1750 GMT and Bora Bora at 1815 GMT, the French Polynesia High Commissioner said in a statement.

"Danger will persist for at least two hours after the first wave hits and magnitudes could be rising," the statement said.

Residents were asked to move away from the shores and seek high ground, it added.

North American Pacific Coast under Tsunami Warning

Estimated Times for Arrival for North American Pacific coast can be viewed by clicking here.

Link to Printable Message

What is a Tsunami?

A tsunami is a series of long ocean waves. Each individual wave crest can last 5 to 15 minutes or more and extensively flood coastal areas. The danger can continue for many hours after the initial wave as subsequent waves arrive. Tsunami wave heights cannot be predicted and the first wave may not be the largest. Tsunami waves efficiently wrap around islands. All shores are at risk no matter which direction they face. The trough of a tsunami wave may temporarily expose the seafloor but the area will quickly flood again. Extremely strong and unusual nearshore currents can accompany a tsunami. Debris picked up and carried by a tsunami amplifies its destructive power. Simultaneous high tides or high surf can significantly increase the tsunami hazard. (More information here)

Australia Issues National Tsunami Warning

Issued by the Joint Australian Tsunami Warning Centre (JATWC) at 6:50 AM EDT on Sunday 28 February 2010. Maps showing the affected areas are on the Bureau web site.

We will provide continuing coverage of the tsunami danger to land and cruise ships in its path. This tsunami has the potential of threatening every nation around the Pacific Ocean — roughly a quarter of the globe.

Japan Issues Major Tsunami Warning

While Hawaii seems to have dodged the bullet, Japan is still predicting a major tsunami event. A major tsunami means waves will be in excess of 3 meters. (current advisories)



Important Links:

There is a lot of detailed information on each of the Tsunami Warning Center websites so be sure to check out the various links for up to the minute information for your area of interest.



NOAA Tsunami Page ( Chile event Feb 27, 2010 )

Propagation animation


DART® real-time tsunami monitoring systems, developed by PMEL, are positioned at strategic locations throughout the ocean and play a critical role in tsunami forecasting.

DART® (Deep-ocean Assessment and Reporting of Tsunamis)

IMPACT on CRUISE SHIPS

Live Cruise Ship and Ocean Liner Tracking:
Interactive tracking map See where ships are relative to tropical storms.

Holland America Ships Safe
(issues following statement)

The four Holland America Line ships that are operating in the Pacific Ocean at this time were not impacted. The ms Veendam was in protected waters in Chile when the earthquake occurred while the ms Zaandam and ms Maasdam are in open ocean and will remain there until the risk of the tsunami wave has passed. ms Rotterdam is safely docked in Puerto Caldera. We will continue to closely monitor the situation and make adjustments to itineraries if needed.

At Holland America Line, the safety and security of our guests and crew is our top priority.

Holland America Cruise Line Travel Advisory
(Monitor this link for updates)


Princess Cruises Monitoring Chile Earthquake / Tsunami (issues following statement)

We are aware of various tsunami warnings as a result of the magnitude 8.8 earthquake in Chile this morning. Any potential impact to our fleet has been reviewed thoroughly. As a result, some changes to port calls today and tomorrow have been made to ensure the safety of our passengers and crew. Passengers are being kept updated onboard.

Earthquake in Chile and Tsunami Warnings (complete details of 2/27 advisory)

Update March 1st:

Star Princess departure from Valparaiso, Chile delayed due to flight problems at Santiago Airport. Passengers from both cruises being allowed onboard. Read complete details:

Update on Star Princess Turnaround in Valparaiso, Chile -- March 2

Princess Cruises News (monitor this link for any additional advisories)

The Port of Auckland was closed today and five ships were ordered to move into deep water until the threat of a tsunami passed.

Dawn Princess arrived earlier and many passengers had already gone ashore when it was ordered out to sea. Don't worry, it will be back to collect the passengers in time to continue to their next port of call.



Info for Norwegian Sun & Pride of America Guests

Pride of America Guests
Because of a tsunami warning, the Port of Honolulu has been closed. Pride of America which was scheduled to dock in Honolulu this morning will spend the day at sea until the port reopens. The safety of the ship's passengers and crew is of the utmost importance. While at sea, this situation does not in any way compromise the safety and security of our passengers and crew.

At this time, we anticipate that the port will re-open at 5 pm local time in Hawaii. Pride of America should be alongside shortly after that and we expect that the next cruise will depart later this evening. Guests traveling to Honolulu or already in Honolulu for the ship's next voyage should call Norwegian Cruise Line at 800-327-7030.

Norwegian Sun Guests
Norwegian Sun is in Montevideo, Uruguay today as scheduled. The ship will arrive in Buenos Aires, Brazil tomorrow as scheduled and embark guests on the February 28, 2010 cruise. We are closely monitoring the situation in Chile and will keep guests updated as to any changes to the current scheduled itinerary.

Norwegian Cruise Line Advisory (monitor this link for any changes)


Celebrity Cruises Monitoring Chile Earthquake / Tsunami

Celebrity Infinity - 14-Night South America, Buenos Aires to Valparaiso is scheduled to depart February 28, 2010. As of this writing it Celebrity has not modified the itinerary. We will continue to monitor the situation and provide updates.



Here are some additional weather links which may be helpful.

NWS - Local Weather

NWS - Mexico
Cabo San Lucas (weather.com)
Acalpulco (weather.com)
Servicio Meteorológico Nacional (Spanish)

My thanks to the various Tsunami Warning Centers (above) which were my source for diagrams used in this post. This information has been provided in the interest of public education and awareness of the impending danger. Please stay safe - stay away from the water when the tsunami approaches.