2017 Surigao earthquake

Last updated

2017 Surigao earthquake
Philippines relief location map (Mindanao).svg
Bullseye1.png
Philippines relief location map (square).svg
Bullseye1.png
UTC  time2017-02-10 14:03:43
ISC  event 610208008
USGS-ANSS ComCat
Local dateFebruary 10, 2017 (2017-02-10)
Local time22:03:42 PST
Magnitude6.7 Ms
6.5 Mw
Depth15.0 km (9.3 mi)
Epicenter 9°54′25″N125°27′07″E / 9.907°N 125.452°E / 9.907; 125.452
Areas affected
Total damage₱665 million+
Max. intensity
TsunamiNo
Aftershocksat least 140
Casualties8 dead
200 injured [1]

The 2017 Surigao earthquake occurred on February 10, 2017, at 10:03 PM (PST), with a surface wave magnitude of 6.7 off the coast of Surigao del Norte in the Philippines. According to the PHIVOLCS Earthquake Intensity Scale the earthquake was an Intensity VII (Destructive) earthquake at maximum. [2] [3] In the past Surigao province has been hit by a magnitude 7.2 tremor in both 1879 [4] and 1893.[ citation needed ]

Contents

Tectonic setting

The Philippine Islands is situated in a highly deformed zone between the convergent boundary of the Eurasian and Philippine Sea plates, known as the Philippine Mobile Belt. Along the east, the Philippine Sea Plate subducts beneath the islands at the Philippine and East Luzon trenches. Major subduction complexes are also active along the southwestern coast of Mindanao at the Cotabato Trench and along the Manila Trench of the west Luzon.

Running through the Philippine Mobile Belt is the Philippine Fault System; a large 1,200-kilometer-long, highly segmented strike-slip fault system. This left-lateral system of faults runs from southeastern Mindanao to northwestern Luzon. Strike-slip deformation within the Philippine Mobile Belt occurs as a result of oblique subduction of the Philippine Sea Plate, where the Philippine Fault System accommodates much of it. [5] The fault is seismically active and ruptures periodically in large earthquakes. Among the largest are the 1990 Luzon and 1973 Ragay Gulf earthquakes.

Earthquake

The earthquake was recorded by the Philippine Institute of Volcanology and Seismology (PHIVOLCS) on February 10, 2017, at 10:03:42 PM (UTC+8). According to PHIVOLCS, the epicenter of the 6.7 magnitude-earthquake was at 9°48′N125°21′E / 9.80°N 125.35°E / 9.80; 125.35 or 16 kilometers, north west of Surigao City. The earthquake was tectonic of origin. The most affected area in terms of the PHIVOLCS Earthquake Intensity Scale (PEIS) was Surigao City, which experienced an intensity of Intensity VII (Destructive). [6] The United States Geological Survey reported the earthquake as having a moment magnitude of 6.5. [2]

Mainshock (Magnitude 6.7) [6]
Intensity

Scale

Location
VII Surigao City; San Francisco, Surigao Del Norte
VI Pintuyan, Southern Leyte.
V Mandaue City, San Ricardo, Limasawa and San Francisco, Southern Leyte.
IV Hinunangan, Southern Leyte and Butuan City.
III Hibok-hibok, Camiguin, Tolosa and Tacloban, Leyte, Bislig City, Gingoog City, Misamis Oriental.
II Cagayan de Oro City, Talocogon, Agusan del Sur, Dumaguete City, Cebu City
Aftershock (Magnitude 5.9) [7]
Intensity

Scale

Location
VI Surigao City
IV Limasawa and San Ricardo, Southern Leyte
III San Juan and San Francisco, Southern Leyte
II Gen. Luna, Surigao Del Norte; Ormoc City
Instrumental Intensities
VII Surigao City
I Borongan, Eastern Samar; Palo, Leyte

The Pacific Tsunami Warning Center issued no tsunami warning following the earthquake. [8]

Impact

According to the Department of Social Welfare and Development, at least 300 houses in Surigao del Norte were damaged following the earthquake. [9] Seven bridges collapsed, isolating San Francisco. At least eleven towns were affected, experiencing power outages. [4]

The Provincial Disaster Risk Reduction and Management Council of Surigao del Norte projected that the cost of damage to property and infrastructure was at least ₱665 million. [10]

Eight people died in the earthquake while 202 others were injured. [11]

Aftermath

On February 11, 2017, the government of Surigao City declared a state of calamity. [12]

The Civil Aviation Authority of the Philippines suspended all flights to and from Surigao City due to the damage sustained by the city's airport runway. [12]

The Philippine national government, through presidential spokesman Ernesto Abella, assured the public that the government would provide aid. [13]

By the afternoon of February 14, 2017, there were at least 140 reported aftershocks recorded by PHIVOLCS. [10]

On March 5, 2017, an aftershock of magnitude 5.9 occurred; one person died of a heart attack, and 29 others were injured, while some walls collapsed. [14]

See also

Related Research Articles

<span class="mw-page-title-main">1990 Luzon earthquake</span> Earthquake in the Philippines

The 1990 Luzon earthquake struck the island of Luzon in the Philippines at 4:26 p.m. on July 16 (PDT) or 3:26 p.m. (PST) with an estimated moment magnitude of 7.7 and a maximum Mercalli intensity of IX (Violent) and produced a 125 km-long ground rupture that stretched from Dingalan, Aurora to Kayapa, Nueva Vizcaya. The event was a result of strike-slip movements along the Philippine Fault and the Digdig Fault within the Philippine Fault System. The earthquake's epicenter was near the town of Rizal, Nueva Ecija, northeast of Cabanatuan. An estimated 1,621 people were killed, most of the fatalities located in Central Luzon and the Cordillera region.

<span class="mw-page-title-main">1976 Moro Gulf earthquake</span> Earthquake in the Philippines

The 1976 Moro Gulf earthquake and tsunami occurred on August 17, 1976, at 00:11 local time near the islands of Mindanao and Sulu, in the Philippines. It measured 8.0 on the moment magnitude scale occurring at a depth of 20 km (12 mi). The earthquake was accompanied by a destructive tsunami that resulted in a majority of the estimated 5,000 to 8,000 fatalities. It was the deadliest and strongest earthquake in the Philippines in 58 years since the 1918 Celebes Sea earthquake.

The 2012 Negros earthquake occurred on February 6 at 11:49 PST, with a body wave magnitude of 6.7 and a maximum intensity of VII (Destructive) off the coast of Negros Oriental, Philippines. The epicenter of the thrust fault earthquake was approximately 72 kilometres (45 mi) north of Negros Oriental's provincial capital, Dumaguete.

<span class="mw-page-title-main">2013 Bohol earthquake</span> Magnitude 7.2 earthquake in Bohol

The 2013 Bohol earthquake occurred on October 15 at 8:12:31 PST in Bohol, an island province located in Central Visayas, Philippines. The magnitude of the earthquake was recorded at Mw 7.2, with epicenter 6 kilometres (3.7 mi) S 24° W of Sagbayan, and its depth of focus was 12 kilometres (7.5 mi). It affected the whole Central Visayas region, particularly Bohol and Cebu. The earthquake was felt in the whole Visayas area and as far as Masbate island in the north and Cotabato provinces in southern Mindanao.

<span class="mw-page-title-main">2017 Batangas earthquakes</span> Earthquakes in the Philippines

The 2017 Batangas earthquakes were an earthquake swarm that occurred from early April to mid-August 2017, affecting the province of Batangas in the Philippines and other nearby areas.

On July 6, 2017, a 6.5 magnitude earthquake hit Leyte, causing at least 4 deaths and 100 injuries. The quake also caused power interruptions in the whole of Eastern Visayas and nearby Bohol.

On April 22, 2019, a 6.1 magnitude earthquake struck the island of Luzon in the Philippines, leaving at least 18 dead, three missing and injuring at least 256 others. Despite the fact that the epicenter was in Zambales, most of the damage to infrastructure occurred in the neighboring province of Pampanga, which suffered damage to 29 buildings and structures.

The 2019 Eastern Samar Earthquake struck the islands of Visayas in the Philippines on April 23, 2019 at 1:37:51 PM(PHT).It had a moment magnitude of 6.5(Mww6.4 by USGS) and a local magnitude of 6.2 with a max intensity of VI based on the PHIVOLCS Earthquake Intensity Scale(PEIS). The epicenter was in San Julian, Eastern Samar and the hypocenter was at a depth of 64 km(~39.76 mi). As of April 30, 2019 there were 172 aftershocks ranging from magnitudes of 1.6 to 4.6. The earthquake injured 48 people and damaged about 245 homes.

<span class="mw-page-title-main">2019 Batanes earthquake</span> Natural disaster

The 2019 Batanes earthquake was a magnitude 6.0 earthquake which struck Batanes, Philippines on July 27, 2019. It was preceded by a 5.4 magnitude foreshock. Nine people were killed by the combined effects of the earthquakes.

The 2019 Cotabato earthquakes were an earthquake swarm which struck the province of Cotabato on the island of Mindanao in the Philippines in October 2019. Three of these earthquakes were above 6.0 on the moment magnitude scale with a Mercalli intensity of VIII. More than 40 people have been reported dead or missing and nearly 800 were injured as a result of these events.

At 14:11 PST on December 15, 2019, the province of Davao del Sur on the island of Mindanao in the Philippines was struck by an earthquake measuring 6.8 Mww. It had a maximum perceived intensity of VII on the Modified Mercalli Intensity Scale. At least 13 people were killed and another 210 injured.

<span class="mw-page-title-main">2020 Masbate earthquake</span> 2020 earthquake in the Philippines

A 6.6 magnitude earthquake struck the island province of Masbate in the Philippines on August 18, 2020, leaving at least 2 dead and 170 injured.

On 9 July 2019, at 8:36 PM (PST), an earthquake measuring Mw 5.6 jolted the province of North Cotabato, Davao del Sur, and other nearby provinces. The National Disaster Risk Reduction and Management Council reported one dead and three injured in Makilala after the earthquake, and a total of 164 families affected in Cotabato Province. Near the epicenter of the earthquake, the severity of strong ground motion was assigned VI (Strong) on the Modified Mercalli intensity scale. A total of 106 schools, 119 houses, and 14 other infrastructures were damaged by the earthquake.

On February 7, 2021, at 12:22 PM PST, an earthquake measuring Mww  6.0 struck Davao del Sur and Cotabato. The event registered a Modified Mercalli Intensity Scale (MMI) of VIII (Severe) with VII on the PHIVOLCS Earthquake Intensity Scale (PEIS).

On August 12, 2021, at 01:46:12 PST, a strong Mw  7.1 earthquake struck the island of Mindanao at a depth of 55.1 kilometers (34.2 mi). It had a maximum perceived Intensity V on the PHIVOLCS Earthquake Intensity Scale. No damage or injuries were reported but a young man was killed by the earthquake.

The 1879 Surigao earthquake occurred on June 30 at 18:38 02:55 local time on the northeastern tip of Mindanao. The earthquake with a moment magnitude (Mw ) of 7.4 struck with an epicenter just south of Lake Mainit. Extensive damage occurred but there were no reports of casualties.

The 1955 Lanao earthquake struck Lanao del Sur on April 1 at 02:17 local time. The earthquake measuring 7.4 on the moment magnitude scale and assigned a maximum intensity of VIII (Severe) on the Modified Mercalli intensity scale was one of the largest to hit Mindanao. It caused immense damage around Lake Lanao and the southern reaches of the Visayan islands. It killed at least 465 individuals and injured a further 898.

<span class="mw-page-title-main">2022 Luzon earthquake</span> Earthquake in the Philippines

On July 27, 2022, at 8:43:24 a.m. (PHT), an earthquake struck the island of Luzon in the Philippines. The earthquake had a magnitude of 7.0 Mw , with an epicenter in Abra province. Eleven people were reported dead and 615 were injured. At least 35,798 homes, schools and other buildings were damaged or destroyed, resulting in ₱1.88 billion (US$34 million) worth of damage.

<span class="mw-page-title-main">December 2023 Mindanao earthquake</span> Magnitude 7.6 earthquake in the Philippines

On December 2, 2023, at 22:37 PST, a magnitude 7.4-7.6 earthquake occurred off the island of Mindanao in the Philippines. The shallow subduction earthquake killed at least three people and left 79 injured.

References

  1. ↑ "Aftershocks rattle survivors after Philippine quake kills 8". Fox News. February 12, 2017. Retrieved February 12, 2017.
  2. 1 2 "M 6.5 - 11 km N of Mabua, Philippines". earthquake.usgs.gov. Archived from the original on January 23, 2022. Retrieved January 23, 2022.
  3. ↑ "Magnitude 6.7 quake hits Surigao City". SunStar. February 12, 2017. Archived from the original on February 11, 2017. Retrieved February 11, 2017.
  4. 1 2 "6 dead, dozens hurt from magnitude-6.7 Surigao quake". CNN Philippines. February 11, 2017. Archived from the original on September 10, 2020. Retrieved February 11, 2017.
  5. ↑ Mario A. Aurelio (2000). "Shear partitioning in the Philippines: Constraints from Philippine Fault and global positioning system data". Island Arc . Wiley Online Library. 9 (4): 584–597. Bibcode:2000IsArc...9..584A. doi:10.1111/j.1440-1738.2000.00304.x. S2CID   129633652.
  6. 1 2 "PHILVOLCS - Earthquake Information No.4 (10 Feb 2017 - 10:03:42 PM)". Philippine Institute of Volcanology and Seismology. February 11, 2017. Archived from the original on February 13, 2017. Retrieved February 12, 2017.
  7. ↑ TV Patrol: Surigao City niyanig ng magnitude 5.9 na lindol; 1 patay, 35 sugatan. (In Tagalog) ABS CBN News March 6, 2017
  8. ↑ "Magnitude 6.7 quake hits Surigao City". SunStar Cebu. February 10, 2017. Archived from the original on February 12, 2017. Retrieved February 12, 2017.
  9. ↑ Gamil, Jaymee (February 11, 2017). "DSWD: More than 300 houses damaged due to Surigao earthquake". Philippine Daily Inquirer. Retrieved February 11, 2017.
  10. 1 2 "Surigao quake survivors refuse to go home". Philippine Daily Inquirer. February 15, 2017. Retrieved February 21, 2017.
  11. ↑ "Surigao quake death toll climbs to 8". Philippine Star. February 14, 2017. Retrieved May 20, 2023.
  12. 1 2 "State of calamity declared in quake-hit Surigao". ABS-CBN News. February 11, 2017. Retrieved February 11, 2017.
  13. ↑ "Gov't assures aid for victims of the Surigao earthquake". Philippine Daily Inquirer. Agence France-Presse. February 11, 2017. Retrieved February 11, 2017.
  14. ↑ Samhati Bhattacharjya (March 5, 2017). "Philippine: Earthquake-stricken city Surigao experiences aftershock of 5.9-magnitude". International Business Times. Retrieved March 5, 2017.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.