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2017 Batangas Earthquake
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. The first major earthquake occurred on April 4 at 8:58pm Philippine Standard Time, with a surface wave magnitude of 5.5 off the coast of Batangas. According to the PHIVOLCS Earthquake Intensity Scale, the earthquake had an intensity of VII (Very Strong). On April 8, stronger earthquakes occurred in the province. The PHIVOLCS recorded the strongest earthquake later that afternoon that had a surface wave magnitude of 6.0. Another earthquake struck on August 11, with a surface wave magnitude of 6.3. Three years later, Taal Volcano, about 25 kilometers from the epicenter, erupted after 43 years of inactivity. Earthquakes April 4 earthquake The quake was recorded by PHIVOLCS on April 4, 2017 at 8:58 PM (UTC+8). Based on that record, the epicenter of the 5.5 earthquake was located 7 kilometers nort ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minor Basilica Of The Immaculate Conception (Batangas City)
The Minor Basilica of the Immaculate Conception and Archdiocesan Shrine of Santo Niño de Batangan ( es, Basílica Menor de la Inmaculada Concepción), also known as the Batangas City Basilica, is a minor basilica in Batangas City, Philippines. It was made an independent parish in 1614 under the advocation of the Immaculate Conception. It is one of the oldest churches in Batangas. History Earlier churches Catholic priest Father Diego de Mojica was said to have constructed the first temporary church made of light materials in 1578. The church was put under the title of the Immaculate Conception. The church was burned down by the fire that gutted the whole town in 1615. In 1686, Father Jose Rodriguez began laying the new foundation of a new church made of stone. The main nave was finished in the same year with the help of Father Manuel del Buensuceso and the townspeople. Fr. Jose de San Bartolome completed the transept made of reef stone on 1706, and it was blessed in 1721. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Obando, Bulacan
Obando, officially the Municipality of Obando ( tgl, Bayan ng Obando), is a 2nd class municipality of the Philippines, municipality in the Philippine Province, province of Bulacan, Philippines. According to the 2020 census, it has a population of 59,978 people. It is away from the Philippine capital Manila and is part of Manila's conurbation which reaches San Ildefonso in its northernmost part.''Obando, Bayang Pinagpala!'' (Obando, Blessed Town!), ''Pamahalaang Bayan ng Obando'' (Local Government of Obando), 2006/2007 History In the 18th century, the municipalities now known as Meycauayan, Valenzuela, Metro Manila, Valenzuela (formerly Polo) and Obando comprised only one town, the Municipality of Meycauayan. The town of Polo and Obando, formed a barrio called Catanghalan. In the year 1623, the municipality of Polo was organized which included the present-day territories of the Town of Obando. By virtue of a decree promulgated during the time of Governor-General of the Philipp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
State Of Calamity
A state of emergency is a situation in which a government is empowered to be able to put through policies that it would normally not be permitted to do, for the safety and protection of its citizens. A government can declare such a state during a natural disaster, civil unrest, armed conflict, medical pandemic or epidemic or other biosecurity risk. ''Justitium'' is its equivalent in Roman law—a concept in which the Roman Senate could put forward a final decree (''senatus consultum ultimum'') that was not subject to dispute yet helped save lives in times of strife. Relationship with international law Under international law, rights and freedoms may be suspended during a state of emergency, depending on the severity of the emergency and a government's policies. Use and viewpoints Though fairly uncommon in democracies, dictatorial regimes often declare a state of emergency that is prolonged indefinitely for the life of the regime, or for extended periods of time so that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taal, Batangas
Taal (), officially the Municipality of Taal ( tgl, Bayan ng Taal), is a 3rd class municipality of the Philippines, municipality in the Philippine Province, province of Batangas, Philippines. According to the 2020 census, it has a population of 61,460 people. Taal is famous for its old Ancestral houses of the Philippines, ancestral houses, one particular ancestral house (now a museum) where Marcela Coronel Mariño de Agoncillo grew up in Taal, Batangas built in the 1770s by her grandparents, Don Andres Sauza Mariño and Doña Eugenia Diokno Mariño, (added by Slavstan Mariño). Its poblacion (central business district) is designated as a National Historical Landmark. The municipality is known as the Balisong (knife), Balisong and Barong Tagalog Capital of the Philippines. The town is home to hundreds of heritage structures dating from the Spanish colonial period. Scholars have been pushing for its inclusion in the UNESCO World Heritage List. History The town of Taal was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taal Basilica
The Taal Basilica, canonically known as the Minor Basilica of Saint Martin of Tours (Filipino: ''Basilika ni San Martin ng Tours''; Spanish: ''Basílica Menor de San Martín de Tours''), is a minor basilica in the town of Taal, Batangas, within the Archdiocese of Lipa. It is considered to be the largest church in the Philippines and in Asia, standing long and wide. Martin of Tours is the patron saint of Taal, whose feast is celebrated every November 11. History Earlier churches In 1575, three years after the founding of the town of Taal in its old site near the shores of Taal Lake, work began on the construction of its first church by Father Diego Espinar, O.S.A. with Martin of Tours as patron saint. The church was rebuilt in 1642 using stronger materials, but it was destroyed in 1754 along with the town of Taal in the largest recorded eruption of the Taal Volcano. This event led to transfer of the town and the church farther away from the volcano to its present site atop a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nasugbu, Batangas
Nasugbu, officially the Municipality of Nasugbu ( tgl, Bayan ng Nasugbu), is a 1st class municipality of the Philippines, municipality in the Philippine Province, province of Batangas, Philippines. According to the 2020 census, it has a population of 136,524 people. Several bus services provide transportation to and from Nasugbu. Jeepneys from Tagaytay also enter and leave the town at a scheduled time. Within the town, tricycles are the main mode of transport. Etymology According to legend, a group of Spanish people, Spanish soldiers was allowed by their commander to go on a sightseeing tour of the friendlier villages on the western coast of Batangas. The group came upon a native couple cooking rice in a ''palayok'' (clay pot), the lid of which rattled over the steaming rice. In Spanish, the group leader asked the woman: ''"¿Cómo se llama este pueblo?"'' ("What is this place called?") The woman, who knew no Spanish, thought that the stranger was asking about her pot of rice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Longitude
Longitude (, ) is a geographic coordinate that specifies the east–west position of a point on the surface of the Earth, or another celestial body. It is an angular measurement, usually expressed in degrees and denoted by the Greek letter lambda (λ). Meridians are semicircular lines running from pole to pole that connect points with the same longitude. The prime meridian defines 0° longitude; by convention the International Reference Meridian for the Earth passes near the Royal Observatory in Greenwich, England on the island of Great Britain. Positive longitudes are east of the prime meridian, and negative ones are west. Because of the Earth's rotation, there is a close connection between longitude and time measurement. Scientifically precise local time varies with longitude: a difference of 15° longitude corresponds to a one-hour difference in local time, due to the differing position in relation to the Sun. Comparing local time to an absolute measure of time allows ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latitude
In geography, latitude is a coordinate that specifies the north– south position of a point on the surface of the Earth or another celestial body. Latitude is given as an angle that ranges from –90° at the south pole to 90° at the north pole, with 0° at the Equator. Lines of constant latitude, or ''parallels'', run east–west as circles parallel to the equator. Latitude and ''longitude'' are used together as a coordinate pair to specify a location on the surface of the Earth. On its own, the term "latitude" normally refers to the ''geodetic latitude'' as defined below. Briefly, the geodetic latitude of a point is the angle formed between the vector perpendicular (or ''normal'') to the ellipsoidal surface from the point, and the plane of the equator. Background Two levels of abstraction are employed in the definitions of latitude and longitude. In the first step the physical surface is modeled by the geoid, a surface which approximates the mean sea level over the ocean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epicenter
The epicenter, epicentre () or epicentrum in seismology is the point on the Earth's surface directly above a hypocenter or focus, the point where an earthquake or an underground explosion originates. Surface damage Before the instrumental period of earthquake observation, the epicenter was thought to be the location where the greatest damage occurred, but the subsurface fault rupture may be long and spread surface damage across the entire rupture zone. As an example, in the magnitude 7.9 Denali earthquake of 2002 in Alaska, the epicenter was at the western end of the rupture, but the greatest damage was about away at the eastern end. Focal depths of earthquakes occurring in continental crust mostly range from . Continental earthquakes below are rare whereas in subduction zone earthquakes can originate at depths deeper than . Epicentral distance During an earthquake, seismic waves propagate in all directions from the hypocenter. Seismic shadowing occurs on the opposite s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypocenter
In seismology, a hypocenter or hypocentre () is the point of origin of an earthquake or a subsurface nuclear explosion. A synonym is the focus of an earthquake. Earthquakes An earthquake's hypocenter is the position where the strain energy stored in the rock is first released, marking the point where the fault begins to rupture.''The hypocenter is the point within the earth where an earthquake rupture starts. The epicenter is the point directly above it at the surface of the Earth. Also commonly termed the focus.'' This occurs directly beneath the epicenter, at a distance known as the ''hypocentral depth'' or ''focal depth''. The focal depth can be calculated from measurements based on seismic wave phenomena. As with all wave phenomena in physics, there is uncertainty in such measurements that grows with the wavelength so the focal depth of the source of these long-wavelength (low frequency) waves is difficult to determine exactly. Very strong earthquakes radiate a large fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Depth Of Focus (tectonics)
In seismology, the depth of focus or focal depth refers to the depth at which an earthquake occurs. Earthquakes occurring at a depth of less than are classified as shallow-focus earthquakes, while those with a focal depth between and are commonly termed mid-focus or intermediate-depth earthquakes. In subduction zones, where older and colder oceanic crust sinks under another tectonic plate, deep-focus earthquakes may occur at much greater depths in the mantle, ranging from up to . The cause of deep-focus earthquakes is still not entirely understood since subducted lithosphere at that pressure and temperature regime should not exhibit brittle behavior. A possible mechanism for the generation of deep-focus earthquakes is faulting caused by olivine undergoing a phase transition into a spinel structure, with which they are believed to be associated. Earthquakes at this depth of focus typically occur at oceanic-continental convergent boundaries, along Wadati–Benioff zones. Discover ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface Wave Magnitude
The surface wave magnitude (M_s) scale is one of the magnitude scales used in seismology to describe the size of an earthquake. It is based on measurements of Rayleigh surface waves that travel along the uppermost layers of the Earth. This magnitude scale is related to the local magnitude scale proposed by Charles Francis Richter in 1935, with modifications from both Richter and Beno Gutenberg throughout the 1940s and 1950s. It is currently used in People's Republic of China as a national standard (GB 17740-1999) for categorising earthquakes. Recorded magnitudes of earthquakes through the mid 20th century, commonly attributed to Richter, could be either M_s or M_L. Definition The formula to calculate surface wave magnitude is: :M_s = \log_\left(\frac\right)_ + \sigma(\Delta)\,, where A is the maximum particle displacement in surface waves (vector sum of the two horizontal displacements) in μm, T is the corresponding period in s (usually 20 2 seconds), Δ is the epi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
