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Posts Tagged ‘tsunami map’

M6.7 Quake Strikes South of Java

Posted by feww on April 4, 2011

Strong Earthquake Measuring 6.7Mw Strikes South of Java, ENE of Christmas Island

The quake struck at an estimated depth of 24 km about 241 km (149 miles) ENE of Christmas Island, USGS/EHP said.

Earthquake Location Map


Source: USGS/EHP. Map enhanced by FIRE-EARTH

Earthquake Details

  • Magnitude: 6.7
  • Date-Time: Sunday, April 03, 2011 at 20:06:42 UTC
  • Location: 9.786°S, 107.749°E
  • Depth: 24 km (14.9 miles)
  • Region: SOUTH OF JAVA, INDONESIA
  • Distances:
    • 241 km (149 miles) ENE of Christmas Island
    • 277 km (172 miles) S of Tasikmalaya, Java, Indonesia
    • 318 km (197 miles) S of Bandung, Java, Indonesia
    • 412 km (256 miles) SSE of JAKARTA, Java, Indonesia
  • Location Uncertainty:
    • horizontal +/- 12 km (7.5 miles)
    • depth +/- 7 km (4.3 miles)
  • Source: USGS NEIC (WDCS-D)

Tsunami Evaluation

A DESTRUCTIVE WIDESPREAD TSUNAMI THREAT DOES NOT EXIST BASED ON HISTORICAL EARTHQUAKE AND TSUNAMI DATA. HOWEVER, THERE IS A VERY SMALL POSSIBILITY OF A LOCAL TSUNAMI THAT COULD AFFECT COASTS LOCATED USUALLY NO MORE THAN A HUNDRED KILOMETERS FROM THE EARTHQUAKE EPICENTER. AUTHORITIES IN THE REGION NEAR THE EPICENTER SHOULD BE MADE AWARE OF THIS POSSIBILITY:  PACIFIC TSUNAMI WARNING CENTER

Damage Report

There was no report of damage or casualties as of posting; however, news agencies quoted a spokesman for Indonesia’s earthquake agency as saying: “In Cilacap people were panicking—most of them are evacuating to higher ground.”

The agency reported the quake as a 7.1 magnitude striking at a depth of 10km with the epicenter located at about 300km from Cilacap, south coast of Java island, Indonesia.

Other Recent Significant Quakes:

  • FIJI Region: 6.4Mw; 17.649°S, 178.578°W; depth of 552km;   Sunday, April 03, 2011 at 14:07:09 UTC
  • Tarapaca Chile: 5.9Mw; 9.555°S, 69.072°W; depth of 83km;  Saturday, April 02, 2011 at 10:59:37 UTC
  • Crete, Greece: 5.9Mw; 35.729°N, 26.455°E; depth of 78km; Friday, April 01, 2011 at 13:29:12 UTC
  • E Honshu, Japan: 5.9Mw; 39.353°N, 141.982°E; depth of 38km;  Friday, April 01, 2011 at 11:57:54 UTC

Related Links

Posted in Indonesia earthquake, Indonesia quake, Indonesia tsunami | Tagged: , , , , | Leave a Comment »

Tohoku Tsunami Satellite Images

Posted by feww on March 20, 2011

Deadly Tohoku Tsunami – Before and After Images

Sendai’s Higashi-Matsushima Airport Inundated by Tsunami Floods


This radar image, obtained with the German Earth-observation satellite TerraSAR-X on 12 March 2011 at 21:43 CET, shows the effect of the tsunami on Higashi-Matsushima Airport and the port of Ishinomaki in the Sendai region on the east coast of Japan. The blue areas indicate flooding; the magenta-coloured areas reveal the extent of the destruction. Credit: DLR. Click image to enlarge (2.9MB)

The port of Sendai after the tsunami


Click image to enlarge (3.25MB)


Impact of the deadly Tohoku tsunami shown in a 12 March 2011 satellite image. The ‘before’ image is added for comparison. Credit: DLR/Rapid Eye. Click image to enlarge.

Death Toll Update

About 8,200 have perished, with another 12,300 people missing. Japanese police say as many as 15.000 people may have been killed in Miyagi prefecture alone.

Radiation Update

Taiwanese officials have found contamination in a batch of fava beans exported from Japan, although the amount, they said, was too small to be pose any threat to human health.

Links  to DLR Satellite Images

Disaster Extent Map – Japan – Sendai Region

Related Links

Posted in japan earthquake, Japan Earthquakes 2011 | Tagged: , , , , , | Leave a Comment »

Destructive Tsunami Generated by Chile Quake

Posted by feww on February 27, 2010

A WIDESPREAD TSUNAMI WARNING IS IN EFFECT

TSUNAMI BULLETIN NUMBER 005
PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS
ISSUED AT 1045UTC 27 FEB 2010

THIS BULLETIN APPLIES TO AREAS WITHIN AND BORDERING THE PACIFIC OCEAN AND ADJACENT SEAS, EXCEPT ALASKA, BRITISH COLUMBIA, WASHINGTON, OREGON AND CALIFORNIA. [SEE below for other bulletins with those areas included ]


Chile Tsunami preliminary forecast model energy map (WCATWC/NOAA). Click image to enlarge.


Source: NOAA/NWS/West Coast and Alaska Tsunami Warning Center. Click image to enlarge.

* A WIDESPREAD TSUNAMI WARNING IS IN EFFECT *

A 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

THIS BULLETIN IS ISSUED AS ADVICE TO GOVERNMENT AGENCIES. ONLY NATIONAL AND LOCAL GOVERNMENT AGENCIES HAVE THE AUTHORITY TO MAKE
DECISIONS REGARDING THE OFFICIAL STATE OF ALERT IN THEIR AREA AND ANY ACTIONS TO BE TAKEN IN RESPONSE.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

ORIGIN TIME – 0634Z 27 FEB 2010
COORDINATES – 36.1 SOUTH 72.6 WEST
DEPTH – 55 KM
LOCATION – NEAR COAST OF CENTRAL CHILE
MAGNITUDE – 8.8

MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY

GAUGE LOCATION LAT LON TIME AMPL PER
——————- —– —— —– ————— —–
IQUIQUE CL 20.2S 70.1W 0906Z 0.27M / 0.9FT 72MIN
ANTOFAGASTA CL 23.2S 70.4W 0941Z 0.49M / 1.6FT 52MIN
ARICA CL 18.5S 70.3W 1007Z 0.94M / 3.1FT 44MIN
DART LIMA 32412 18.0S 86.4W 0941Z 0.24M / 0.8FT 36MIN
CALDERA CL 27.1S 70.8W 0843Z 0.45M / 1.5FT 20MIN
TALCAHUANO CL 36.7S 73.4W 0653Z 2.34M / 7.7FT 88MIN
COQUIMBO CL 30.0S 71.3W 0852Z 1.32M / 4.3FT 30MIN
CORRAL CL 39.9S 73.4W 0739Z 0.90M / 2.9FT 16MIN
SAN FELIX CL 26.3S 80.1W 0815Z 0.53M / 1.7FT 08MIN
VALPARAISO CL 33.0S 71.6W 0708Z 1.29M / 4.2FT 20MIN

LAT – LATITUDE (N-NORTH, S-SOUTH)
LON – LONGITUDE (E-EAST, W-WEST)
TIME – TIME OF THE MEASUREMENT (Z IS UTC IS GREENWICH TIME)
AMPL – TSUNAMI AMPLITUDE MEASURED RELATIVE TO NORMAL SEA LEVEL.
IT IS …NOT… CREST-TO-TROUGH WAVE HEIGHT.
VALUES ARE GIVEN IN BOTH METERS(M) AND FEET(FT).
PER – PERIOD OF TIME IN MINUTES(MIN) FROM ONE WAVE TO THE NEXT.

EVALUATION

SEA LEVEL READINGS CONFIRM THAT A TSUNAMI HAS BEEN GENERATED WHICH COULD CAUSE WIDESPREAD DAMAGE. AUTHORITIES SHOULD TAKE APPROPRIATE ACTION IN RESPONSE TO THIS THREAT. THIS CENTER WILL CONTINUE TO MONITOR SEA LEVEL DATA TO DETERMINE THE EXTENT AND SEVERITY OF THE THREAT.

A TSUNAMI IS A SERIES OF WAVES AND THE FIRST WAVE MAY NOT BE THE LARGEST. TSUNAMI WAVE HEIGHTS CANNOT BE PREDICTED AND CAN VARY SIGNIFICANTLY ALONG A COAST DUE TO LOCAL EFFECTS. THE TIME FROM ONE TSUNAMI WAVE TO THE NEXT CAN BE FIVE MINUTES TO AN HOUR, AND THE THREAT CAN CONTINUE FOR MANY HOURS AS MULTIPLE WAVES ARRIVE.

FOR ALL AREAS – WHEN NO MAJOR WAVES ARE OBSERVED FOR TWO HOURS AFTER THE ESTIMATED TIME OF ARRIVAL OR DAMAGING WAVES HAVE NOT OCCURRED FOR AT LEAST TWO HOURS THEN LOCAL AUTHORITIES CAN ASSUME THE THREAT IS PASSED. DANGER TO BOATS AND COASTAL STRUCTURES CAN CONTINUE FOR SEVERAL HOURS DUE TO RAPID CURRENTS. AS LOCAL CONDITIONS CAN CAUSE A WIDE VARIATION IN TSUNAMI WAVE ACTION THE ALL CLEAR DETERMINATION MUST BE MADE BY LOCAL AUTHORITIES.

ESTIMATED INITIAL TSUNAMI WAVE ARRIVAL TIMES AT FORECAST POINTS WITHIN THE WARNING AND WATCH AREAS ARE GIVEN BELOW. ACTUAL ARRIVAL TIMES MAY DIFFER AND THE INITIAL WAVE MAY NOT BE THE LARGEST. A TSUNAMI IS A SERIES OF WAVES AND THE TIME BETWEEN SUCCESSIVE WAVES CAN BE FIVE MINUTES TO ONE HOUR.

LOCATION FORECAST POINT COORDINATES ARRIVAL TIME
——————————– ———— ————
CHILE TALCAHUANO 36.7S 73.1W 0729Z 27 FEB
VALPARAISO 33.0S 71.6W 0739Z 27 FEB
COQUIMBO 29.9S 71.3W 0801Z 27 FEB
CORRAL 39.8S 73.5W 0810Z 27 FEB
CALDERA 27.1S 70.8W 0821Z 27 FEB
ANTOFAGASTA 23.3S 70.4W 0844Z 27 FEB
IQUIQUE 20.2S 70.1W 0911Z 27 FEB
ARICA 18.5S 70.3W 0929Z 27 FEB
GOLFO DE PENAS 47.1S 74.9W 0934Z 27 FEB
PUERTO MONTT 41.5S 73.0W 1052Z 27 FEB
EASTER IS. 27.1S 109.4W 1205Z 27 FEB
PUNTA ARENAS 53.2S 70.9W 1213Z 27 FEB
PUERTO WILLIAMS 54.8S 68.2W 1404Z 27 FEB
PERU MOLLENDO 17.1S 72.0W 0936Z 27 FEB
SAN JUAN 15.3S 75.2W 0952Z 27 FEB
LA PUNTA 12.1S 77.2W 1045Z 27 FEB
PIMENTAL 6.9S 80.0W 1114Z 27 FEB
TALARA 4.6S 81.5W 1127Z 27 FEB
CHIMBOTE 9.0S 78.8W 1132Z 27 FEB
ECUADOR LA LIBERTAD 2.2S 81.2W 1202Z 27 FEB
ESMERELDAS 1.2N 79.8W 1234Z 27 FEB
BALTRA IS. 0.5S 90.3W 1313Z 27 FEB
COLOMBIA TUMACO 1.8N 78.9W 1253Z 27 FEB
BAHIA SOLANO 6.3N 77.4W 1327Z 27 FEB
BUENAVENTURA 3.8N 77.2W 1340Z 27 FEB
ANTARCTICA THURSTON IS. 72.0S 100.0W 1312Z 27 FEB
CAPE ADARE 71.0S 170.0E 1650Z 27 FEB
PANAMA PUERTO PINA 7.4N 78.1W 1331Z 27 FEB
PUNTA MALA 7.5N 79.9W 1334Z 27 FEB
PUNTA BURICA 8.0N 82.8W 1340Z 27 FEB
BALBOA HTS. 9.0N 79.6W 1457Z 27 FEB
COSTA RICA CABO MATAPALO 8.4N 83.3W 1344Z 27 FEB
PUERTO QUEPOS 9.4N 84.2W 1417Z 27 FEB
CABO SAN ELENA 10.9N 86.0W 1452Z 27 FEB
NICARAGUA SAN JUAN DL SUR 11.2N 85.9W 1452Z 27 FEB
PUERTO SANDINO 12.2N 86.8W 1512Z 27 FEB
CORINTO 12.5N 87.2W 1520Z 27 FEB
PITCAIRN PITCAIRN IS. 25.1S 130.1W 1455Z 27 FEB
HONDURAS AMAPALA 13.2N 87.6W 1520Z 27 FEB
EL SALVADOR ACAJUTLA 13.6N 89.8W 1531Z 27 FEB
GUATEMALA SIPICATE 13.9N 91.2W 1539Z 27 FEB
FR. POLYNESIA RIKITEA 23.1S 135.0W 1542Z 27 FEB
HIVA OA 10.0S 139.0W 1723Z 27 FEB
PAPEETE 17.5S 149.6W 1748Z 27 FEB
MEXICO PUERTO MADERO 14.8N 92.5W 1552Z 27 FEB
ACAPULCO 16.9N 99.9W 1615Z 27 FEB
MANZANILLO 19.1N 104.3W 1709Z 27 FEB
SOCORRO 18.8N 111.0W 1719Z 27 FEB
CABO SAN LUCAS 22.8N 110.0W 1749Z 27 FEB
MAZATLAN 23.2N 106.4W 1753Z 27 FEB
PUNTA ABREOJOS 26.7N 113.6W 1856Z 27 FEB
ENSENADA 31.8N 116.8W 2016Z 27 FEB
COOK ISLANDS RAROTONGA 21.2S 159.8W 1814Z 27 FEB
PENRYN IS. 8.9S 157.8W 1925Z 27 FEB
PUKAPUKA IS. 10.8S 165.9W 1950Z 27 FEB
KIRIBATI FLINT IS. 11.4S 151.8W 1836Z 27 FEB
MALDEN IS. 3.9S 154.9W 1934Z 27 FEB
CHRISTMAS IS. 2.0N 157.5W 2028Z 27 FEB
KANTON IS. 2.8S 171.7W 2112Z 27 FEB
TARAWA IS. 1.5N 173.0E 2258Z 27 FEB
KERMADEC IS RAOUL IS. 29.2S 177.9W 1912Z 27 FEB
NIUE NIUE IS. 19.0S 170.0W 1918Z 27 FEB
NEW ZEALAND EAST CAPE 37.7S 178.5E 1918Z 27 FEB
GISBORNE 38.7S 178.0E 1922Z 27 FEB
DUNEDIN 45.9S 170.5E 1952Z 27 FEB
NAPIER 39.5S 176.9E 1954Z 27 FEB
WELLINGTON 41.3S 174.8E 1955Z 27 FEB
MILFORD SOUND 44.6S 167.9E 2005Z 27 FEB
NORTH CAPE 34.4S 173.3E 2010Z 27 FEB
BLUFF 46.6S 168.3E 2030Z 27 FEB
LYTTELTON 43.6S 172.7E 2040Z 27 FEB
AUCKLAND(E) 36.7S 175.0E 2056Z 27 FEB
NELSON 41.3S 173.3E 2127Z 27 FEB
WESTPORT 41.8S 171.6E 2129Z 27 FEB
AUCKLAND(W) 37.1S 174.2E 2140Z 27 FEB
NEW PLYMOUTH 39.1S 174.1E 2219Z 27 FEB
TONGA NUKUALOFA 21.0S 175.2W 1940Z 27 FEB
AMERICAN SAMOA PAGO PAGO 14.3S 170.7W 1951Z 27 FEB
SAMOA APIA 13.8S 171.8W 2006Z 27 FEB
JARVIS IS. JARVIS IS. 0.4S 160.1W 2026Z 27 FEB
WALLIS-FUTUNA WALLIS IS. 13.2S 176.2W 2028Z 27 FEB
TOKELAU NUKUNONU IS. 9.2S 171.8W 2030Z 27 FEB
FIJI SUVA 18.1S 178.4E 2104Z 27 FEB
AUSTRALIA HOBART 43.3S 147.6E 2105Z 27 FEB
SYDNEY 33.9S 151.4E 2146Z 27 FEB
BRISBANE 27.2S 153.3E 2310Z 27 FEB
GLADSTONE 23.8S 151.4E 0101Z 28 FEB
CAIRNS 16.7S 145.8E 0159Z 28 FEB
MACKAY 21.1S 149.3E 0251Z 28 FEB
HAWAII HILO 19.7N 155.1W 2119Z 27 FEB
HONOLULU 21.3N 157.9W 2152Z 27 FEB
NAWILIWILI 22.0N 159.4W 2158Z 27 FEB
PALMYRA IS. PALMYRA IS. 6.3N 162.4W 2124Z 27 FEB
TUVALU FUNAFUTI IS. 7.9S 178.5E 2125Z 27 FEB
VANUATU ANATOM IS. 20.2S 169.9E 2137Z 27 FEB
ESPERITU SANTO 15.1S 167.3E 2235Z 27 FEB
HOWLAND-BAKER HOWLAND IS. 0.6N 176.6W 2154Z 27 FEB
NEW CALEDONIA NOUMEA 22.3S 166.5E 2218Z 27 FEB
JOHNSTON IS. JOHNSTON IS. 16.7N 169.5W 2245Z 27 FEB
SOLOMON IS. KIRAKIRA 10.4S 161.9E 2321Z 27 FEB
MUNDA 8.4S 157.2E 0001Z 28 FEB
GHATERE 7.8S 159.2E 0001Z 28 FEB
AUKI 8.8S 160.6E 0004Z 28 FEB
HONIARA 9.3S 160.0E 0004Z 28 FEB
FALAMAE 7.4S 155.6E 0017Z 28 FEB
PANGGOE 6.9S 157.2E 0020Z 28 FEB
NAURU NAURU 0.5S 166.9E 2331Z 27 FEB
MARSHALL IS. MAJURO 7.1N 171.4E 2339Z 27 FEB
KWAJALEIN 8.7N 167.7E 0013Z 28 FEB
ENIWETOK 11.4N 162.3E 0102Z 28 FEB
MIDWAY IS. MIDWAY IS. 28.2N 177.4W 0022Z 28 FEB
KOSRAE KOSRAE IS. 5.5N 163.0E 0026Z 28 FEB
PAPUA NEW GUINE AMUN 6.0S 154.7E 0036Z 28 FEB
KIETA 6.1S 155.6E 0038Z 28 FEB
RABAUL 4.2S 152.3E 0102Z 28 FEB
PORT MORESBY 9.3S 146.9E 0123Z 28 FEB
LAE 6.8S 147.0E 0128Z 28 FEB
KAVIENG 2.5S 150.7E 0135Z 28 FEB
MADANG 5.2S 145.8E 0154Z 28 FEB
MANUS IS. 2.0S 147.5E 0214Z 28 FEB
WEWAK 3.5S 143.6E 0237Z 28 FEB
VANIMO 2.6S 141.3E 0258Z 28 FEB
POHNPEI POHNPEI IS. 7.0N 158.2E 0111Z 28 FEB
WAKE IS. WAKE IS. 19.3N 166.6E 0112Z 28 FEB
CHUUK CHUUK IS. 7.4N 151.8E 0213Z 28 FEB
RUSSIA MEDNNY IS 54.7N 167.4E 0236Z 28 FEB
UST KAMCHATSK 56.1N 162.6E 0302Z 28 FEB
PETROPAVLOVSK K 53.2N 159.6E 0333Z 28 FEB
URUP IS 46.1N 150.5E 0354Z 28 FEB
SEVERO KURILSK 50.8N 156.1E 0410Z 28 FEB
MARCUS IS. MARCUS IS. 24.3N 154.0E 0248Z 28 FEB
INDONESIA JAYAPURA 2.4S 140.8E 0302Z 28 FEB
WARSA 0.6S 135.8E 0345Z 28 FEB
MANOKWARI 0.8S 134.2E 0405Z 28 FEB
SORONG 0.8S 131.1E 0433Z 28 FEB
BEREBERE 2.5N 128.7E 0452Z 28 FEB
PATANI 0.4N 128.8E 0505Z 28 FEB
GEME 4.6N 126.8E 0512Z 28 FEB
N. MARIANAS SAIPAN 15.3N 145.8E 0303Z 28 FEB
GUAM GUAM 13.4N 144.7E 0311Z 28 FEB
YAP YAP IS. 9.5N 138.1E 0352Z 28 FEB
BELAU MALAKAL 7.3N 134.5E 0413Z 28 FEB
JAPAN KUSHIRO 42.9N 144.3E 0435Z 28 FEB
KATSUURA 35.1N 140.3E 0453Z 28 FEB
HACHINOHE 40.5N 141.5E 0509Z 28 FEB
SHIMIZU 32.8N 133.0E 0557Z 28 FEB
OKINAWA 26.2N 127.8E 0610Z 28 FEB
PHILIPPINES DAVAO 6.8N 125.7E 0527Z 28 FEB
PALANAN 17.1N 122.6E 0559Z 28 FEB
LEGASPI 13.2N 123.8E 0604Z 28 FEB
CHINESE TAIPEI HUALIEN 24.0N 121.6E 0626Z 28 FEB
HUALIEN 24.0N 121.7E 0626Z 28 FEB
CHILUNG 25.2N 121.8E 0654Z 28 FEB
TAITUNG 22.7N 121.2E 0655Z 28 FEB

BULLETINS WILL BE ISSUED HOURLY OR SOONER IF CONDITIONS WARRANT.
THE TSUNAMI WARNING WILL REMAIN IN EFFECT UNTIL FURTHER NOTICE.

WEPA41 PAAQ 271403
TSUWCA

BULLETIN
TSUNAMI MESSAGE NUMBER 8
NWS WEST COAST/ALASKA TSUNAMI WARNING CENTER PALMER AK
552 AM PST SAT FEB 27 2010

…A TSUNAMI ADVISORY IS IN EFFECT WHICH INCLUDES THE COASTAL AREAS OF CALIFORNIA FROM THE CALIFORNIA-MEXICO BORDER TO THE OREGON-CALIFORNIA BORDER…

…A TSUNAMI ADVISORY IS IN EFFECT WHICH INCLUDES THE COASTAL AREAS OF OREGON – WASHINGTON – BRITISH COLUMBIA AND ALASKA FROM THE OREGON-CALIFORNIA BORDER TO KODIAK ALASKA…

…A TSUNAMI ADVISORY IS IN EFFECT WHICH INCLUDES THE COASTAL AREAS OF ALASKA FROM KODIAK ALASKA TO ATTU ALASKA…

RECOMMENDED ACTIONS
A TSUNAMI HAS BEEN GENERATED WHICH COULD IMPACT THE ADVISORY REGIONS LISTED IN THE HEADLINE. PERSONS IN LOW-LYING COASTAL AREAS SHOULD BE ALERT TO INSTRUCTIONS FROM THEIR LOCAL EMERGENCY OFFICIALS. EVACUATIONS ARE ONLY ORDERED BY EMERGENCY RESPONSE AGENCIES.
– PERSONS IN TSUNAMI ADVISORY AREAS SHOULD MOVE OUT OF THE WATER… OFF THE BEACH AND OUT OF HARBORS AND MARINAS.

THIS MESSAGE IS BASED ON EARTHQUAKE DATA… OBSERVED TSUNAMI AMPLITUDES… HISTORICAL INFORMATION AND FORECAST MODELS.

A TSUNAMI HAS BEEN OBSERVED AT THE FOLLOWING SITES

LOCATION LAT LON TIME AMPL
———————— —– —— ——- ———–
74MIN TALCAHUANO C 36.7S 73.1W 0657UTC 1.84M/6.1FT
40MIN SAN FELIX CH 26.3S 80.1W 0832UTC 0.81M/2.7FT
57MIN CALDERA CHIL 27.1S 70.8W 0746UTC 0.52M/1.7FT
47MIN COQUIMBO CHI 29.9S 71.3W 0902UTC 1.27M/4.2FT
78MIN IQUIQUE CHIL 20.2S 70.2W 0851UTC 0.30M/1.0FT
57MIN ANTOFAGASTA 23.3S 70.4W 0956UTC 0.46M/1.5FT
84MIN ANCUD CHILE 41.9S 74.3W 0943UTC 0.34M/1.1FT
30MIN CORRAL CHILE 39.9S 73.4W 1012UTC 1.54M/5.1FT
56MIN CALLAO LA PUN 12.1S 77.2W 1029UTC 0.66M/2.2FT
52MIN BALTRA ECUAD 0.4S 90.3W 1251UTC 0.35M/1.2FT

TIME – TIME OF MEASUREMENT
AMPL – TSUNAMI AMPLITUDES ARE MEASURED RELATIVE TO NORMAL SEA LEVEL.
IT IS …NOT… CREST-TO-TROUGH WAVE HEIGHT.
VALUES ARE GIVEN IN BOTH METERS(M) AND FEET(FT).

PRELIMINARY EARTHQUAKE PARAMETERS
MAGNITUDE – 8.8
TIME – 2134 AKST FEB 26 2010
2234 PST FEB 26 2010
0634 UTC FEB 27 2010
LOCATION – 36.1 SOUTH 72.6 WEST
– NEAR COAST OF CENTRAL CHILE
DEPTH – 19 MILES/31 KM

THE PACIFIC TSUNAMI WARNING CENTER IN EWA BEACH HAWAII WILL ISSUE MESSAGES FOR HAWAII AND OTHER AREAS OF THE PACIFIC OUTSIDE THE STATES AND PROVINCES PREVIOUSLY LISTED.

TSUNAMI ADVISORIES MEAN THAT A TSUNAMI CAPABLE OF PRODUCING STRONG CURRENTS OR WAVES DANGEROUS TO PERSONS IN OR VERY NEAR THE WATER IS IMMINENT OR EXPECTED. SIGNIFICANT WIDESPREAD INUNDATION IS NOT EXPECTED FOR AREAS UNDER AN ADVISORY. CURRENTS MAY BE HAZARDOUS TO SWIMMERS… BOATS… AND COASTAL STRUCTURES AND MAY CONTINUE FOR SEVERAL HOURS AFTER THE INITIAL WAVE ARRIVAL.

THIS MESSAGE WILL BE UPDATED IN 60 MINUTES OR SOONER IF THE SITUATION WARRANTS. THE TSUNAMI MESSAGE WILL REMAIN IN EFFECT UNTIL FURTHER NOTICE. REFER TO THE INTERNET SITE WCATWC.ARH.NOAA.GOV FOR MORE INFORMATION.

PZZ650-655-673-750-775-565-670-530-535-545-560-455-540-450-
CAZ039>043-087-034-035-530-006-506-508-509-529-002-505-001-
271522-
/O.CON.PAAQ.TS.Y.0005.000000T0000Z-000000T0000Z/
COASTAL AREAS BETWEEN AND INCLUDING THE CALIFORNIA-MEXICO BORDER TO THE OREGON-CALIFORNIA BORDER
552 AM PST SAT FEB 27 2010

…A TSUNAMI ADVISORY IS IN EFFECT WHICH INCLUDES THE COASTAL AREAS OF CALIFORNIA FROM THE CALIFORNIA-MEXICO BORDER TO THE OREGON-CALIFORNIA BORDER…

PERSONS IN TSUNAMI ADVISORY AREAS SHOULD MOVE OUT OF THE WATER… OFF THE BEACH AND OUT OF HARBORS AND MARINAS.

TSUNAMI ADVISORIES MEAN THAT A TSUNAMI CAPABLE OF PRODUCING STRONG CURRENTS OR WAVES DANGEROUS TO PERSONS IN OR VERY NEAR WATER IS IMMINENT OF EXPECTED. SIGNIFICANT WIDESPREAD INUNDATION IS NOT EXPECTED FOR AREAS IN AN ADVISORY. TSUNAMIS ARE A SERIES OF WAVES POTENTIALLY DANGEROUS SEVERAL HOURS AFTER INITIAL ARRIVAL TIME. ESTIMATED TIMES OF INITIAL WAVE ARRIVAL FOR SELECTED SITES IN THE ADVISORY ARE PROVIDED BELOW.

LA JOLLA-CA 1202 PST FEB 27 SAN FRANCISCO-CA 1326 PST FEB 27
SANTA BARBARA-CA 1231 PST FEB 27 CRESCENT CITY-CA 1346 PST FEB 27
FOR ARRIVAL TIMES AT ADDITIONAL LOCATIONS SEE
WCATWC.ARH.NOAA.GOV

$$

PZZ356-255-310-350-210-250-110-130>135-150-153-156-170-PKZ310-
031>036-041-042-011>013-021-022-043-051-052-053-120-121-125>129-
130-140-141-ORZ022-002-021-001-WAZ001-021-503-506>511-514>517-
AKZ023-024-026>029-018>022-025-017-131-135-121-125-145-271522-
/O.EXA.PAAQ.TS.Y.0005.000000T0000Z-000000T0000Z/
COASTAL AREAS BETWEEN AND INCLUDING THE OREGON-CALIFORNIA BORDER TO KODIAK ALASKA
552 AM PST SAT FEB 27 2010

…A TSUNAMI ADVISORY IS IN EFFECT WHICH INCLUDES THE COASTAL AREAS OF OREGON – WASHINGTON – BRITISH COLUMBIA AND ALASKA FROM THE OREGON-CALIFORNIA BORDER TO KODIAK ALASKA…

PERSONS IN TSUNAMI ADVISORY AREAS SHOULD MOVE OUT OF THE WATER… OFF THE BEACH AND OUT OF HARBORS AND MARINAS.

TSUNAMI ADVISORIES MEAN THAT A TSUNAMI CAPABLE OF PRODUCING STRONG CURRENTS OR WAVES DANGEROUS TO PERSONS IN OR VERY NEAR WATER IS IMMINENT OF EXPECTED. SIGNIFICANT WIDESPREAD INUNDATION IS NOT EXPECTED FOR AREAS IN AN ADVISORY. TSUNAMIS ARE A SERIES OF WAVES POTENTIALLY DANGEROUS SEVERAL HOURS AFTER INITIAL ARRIVAL TIME. ESTIMATED TIMES OF INITIAL WAVE ARRIVAL FOR SELECTED SITES IN THE ADVISORY ARE PROVIDED BELOW.

CHARLESTON-OR 1402 PST FEB 27 YAKUTAT-AK 1619 AKST FEB 27
SEASIDE-OR 1446 PST FEB 27 KODIAK-AK 1628 AKST FEB 27
WESTPORT-WA 1457 PST FEB 27 JUNEAU-AK 1635 AKST FEB 27
NEAH BAY-WA 1507 PST FEB 27 SEWARD-AK 1639 AKST FEB 27
TOFINO-BC 1515 PST FEB 27 VALDEZ-AK 1657 AKST FEB 27
LANGARA-BC 1551 PST FEB 27 CORDOVA-AK 1706 AKST FEB 27
SITKA-AK 1529 AKST FEB 27 HOMER-AK 1739 AKST FEB 27
KETCHIKAN-AK 1549 AKST FEB 27
FOR ARRIVAL TIMES AT ADDITIONAL LOCATIONS SEE
WCATWC.ARH.NOAA.GOV

Z = UTC

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Magnitude 8.3 Quake Strikes Samoa Islands Region

Posted by feww on September 29, 2009

Up to 3 More Large EQs Could Strike the Pacific Ring of Fire in 2009

The Next Megaquake May Strike New Zealand

Massive Earthquake Measuring up to 8.4 Mw Strikes Samoa Islands Region

The mainshock occurred on Tuesday, September 29, 2009 at 17:48 UTC [Tuesday, September 29, 2009 at 06:48 AM at epicenter,] which struck at striking at a depth of about 10km.  The mainshock has since been  followed by at least two dozen aftershocks both locally and in the neighboring Tonga region, the largest of which measures 6.2 Mw so far.

Tsunami

The large earthquake generated  1.6-meter  waves in American Samoa, Apia and Pago Pago. The Pacific Tsunami Warning Center (NOAA/NWS/PTWC) issued a tsunami warning which has since been canceled.

According to local news, at least 4 villages were wiped off, leaving more than 40 dead and up to a 100 injured. Most of the casualties are believe to be children. More casualties are expected as local reports are received.

How large was this earthquake?

The GFZ Potsdam – Earthquake Bulletin reported the mainshock as M 8.2, while the European-Mediterranean Seismological Center recorded it as 8.1Mw. However, FEWW believes the quake measured up to 8.4Mw.

On June 26, 1917, a magnitude 8.4 earthquake struck the neighboring Tonga region at a depth of about 25km, some 115 km northwest of today’s event.

Tsunami Location Map


Click on image to enlarge
. Source NOAA

This advisory is in effect for California, and Oregon

  • A tsunami advisory indicates a tsunami which may produce strong currents and is dangerous to those in or very near the water is expected.
  • Large inundations are not expected in areas under advisory status.
  • Advisories will be cancelled, extended, or upgraded to a warning depending on the event severity.
  • Advisories are issued when the expected tsunami amplitude is in the range of 0.3 to 1 meter.

Tsunami Propagation Map


Click on image to enlarge.
Source: NOAA/WCATWC

US Tsunami waves initial arrival times

tsunami trvel time table
Tsunami waves initial arrival times including wave amplitude above sea level (ASL) at the US coastal areas.


Click  on image to enlarge. Source NOAA

Tsunami Travel Time Map

tsunami trvel time
Tsunami Travel Time Map. Source NOAA/NGDC. Click on image to enlarge.

Map of Tsunami Advisory – Japan

JMA sunami advisory
Map of Tsunami Advisory  for  Japan. Yellow highlights indicate tsunami heights of about 0.5m (50cm). Original Map: Japan Meteorological Agency (JMA). Image may be subject to copyright. Click on image to enlarge.

Earthquake Details

GFZ Potsdam – Earthquake Bulletin
Region: Samoa Islands Region
Time: 2009-09-29 17:48:10.3 UTC
Magnitude: 8.2
Epicenter: 172.04°W 15.49°S
Depth: 10 km
Status: manually revised

Samoa Island Region gfz2009tceh
© Helmholtz-Zentrum Potsdam Deutsches GeoForschungsZentrum – GFZ

USGS downgraded the mainshock to 8.0Mw.

10-degree Map Centered at 15°S,170°W

Samoan Islands USGS
Earthquake Location Map. Original Map: USGS. Enhanced by FEWW.

Historic Seismicity (Mag 7 or greater EQs since 1900)

hiseis samoan Islands quake 29-09-09
Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green

Original Image: USGS. Enhanced by FEWW.

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