Tarlac in the context of "Zambales Mountains"

Mount Pinatubo is an active stratovolcano in the Zambales Mountains in Luzon in the Philippines. Located on the tripoint of Zambales, Tarlac and Pampanga provinces, most people were unaware of its eruptive history before the pre-eruption volcanic activity in early 1991. Dense forests, which supported a population of several thousand indigenous Aetas, heavily eroded and obscured Pinatubo.

Pinatubo is known for its VEI-6 eruption on June 15, 1991, the second-largest terrestrial eruption of the 20th century after the 1912 eruption of Novarupta in Alaska. The eruption coincided with Typhoon Yunya making landfall in the Philippines, which brought a dangerous mix of ash and rain to nearby towns and cities. Early predictions led to the evacuation of tens of thousands of people, saving many lives. The eruption severely damaged surrounding areas with pyroclastic surges, pyroclastic falls, and later, flooding lahars caused by rainwater re-mobilizing volcanic deposits. This destruction affected infrastructure and altered river systems for years. Minor dome-forming eruptions inside the caldera continued from 1992 to 1993.

Central Bikol, commonly called Bikol Naga or simply Bikol, is an Austronesian language spoken by the Bicolanos, primarily in the Bicol Region of southern Luzon, Philippines. It is spoken in the northern and western part of Camarines Sur, the second congressional district of Camarines Norte, the eastern part of Albay, the northeastern part of Sorsogon, San Pascual town in Masbate, and the southwestern part of Catanduanes. Central Bikol speakers can be found in all provinces of Bicol, and it is a majority language in Camarines Sur. The standard sprachraum form is based on the Canaman dialect. The language has also speakers outside their native regional homeland, especially in Metro Manila, Mindoro, Palawan, and Mindanao (particularly in Mati, Davao Oriental)

Central Bikol features some vocabulary not found in other Bikol languages nor in other members of the Central Philippine language family like Tagalog and Cebuano. Examples are the words matua and bitis, which are the same as the Kapampangan words meaning 'older' and 'foot, feet', respectively. The word banggi ('night') is another example of this as it is different from the usual Bikol word gab-i but closer to the word bengi of Kapampangan. There is no formal study on the relationship of the Central Luzon languages to Central Bikol but the latter has several words that are also found in the archaic form of Tagalog spoken in the Rizal and Quezon provinces that are believed to be the home of Central Luzon languages such as Kapampangan in Pampanga and southern Tarlac, and Sambalic languages in Zambales province.

Zambales, officially the Province of Zambales (Sambal: Probinsya nin Zambales; Ilocano: Probinsia ti Zambales; Pangasinan: Luyag na Zambales; Kapampangan: Lalawigan ning Zambales; Tagalog: Lalawigan ng Zambales), is a province in the Philippines located in the Central Luzon region. Its capital is Iba, which is located in the middle of the province. Olongapo is the largest city of the province wherein it is geographically located but politically independent.

Zambales borders Pangasinan to the north and northeast, Tarlac to the east, Pampanga to the southeast, Bataan to the south and the South China Sea to the west. With a total land area of 3,830.83 square kilometres (1,479.09 sq mi) (including the independent city of Olongapo), Zambales is the second largest among the seven provinces of Central Luzon after Nueva Ecija. The province is noted for its mangoes, which are abundant from January to April.

Pampanga, officially the Province of Pampanga (Kapampangan: Lalawigan ning Pampanga; Tagalog: Lalawigan ng Pampanga), is a province in Central Luzon, Philippines. Lying on the northern shore of Manila Bay, Pampanga is bordered by Tarlac to the north, Nueva Ecija to the northeast, Bulacan to the east, Manila Bay to the south, Bataan to the southwest, and Zambales to the west. Its capital is San Fernando, the regional center of Central Luzon. Angeles City is the largest city in Pampanga but is administratively independent. It has been self-governing since receiving its charter in 1964.

The name La Pampanga was given by the Spaniards, who found natives living along the banks (pampáng) of the Pampanga River. It was created in 1571 as the first Spanish province on Luzon (the province of Cebu in the Visayas is older, founded in 1565). The town of Villa de Bacolor briefly served as the Spanish colonial capital when Great Britain occupied Manila during the Seven Years' War. On the eve of the Philippine Revolution in 1896, Pampanga was one of eight provinces placed under martial law for rebelling against the Spanish Empire. It is represented on the Flag of the Philippines by one of the eight rays of the sun.

Kapampangan, Capampáñgan, or Pampangan, is an Austronesian language, and one of the eight major languages of the Philippines. It is the primary and predominant language of the entire province of Pampanga and southern Tarlac, on the southern part of Luzon's central plains geographic region, where the Kapampangan ethnic group resides. Kapampangan is also spoken in northeastern Bataan, as well as in the provinces of Bulacan, Nueva Ecija, and Zambales that border Pampanga. It is further spoken as a second language by a few Aeta groups in the southern part of Central Luzon. The language is known honorifically as Amánung Sísuan ('breastfed, or nurtured, language').

Kapampangan is assigned the ISO 639-2 three-letter code pam, but not an ISO 639-1 two-letter code.

Pangasinan (Pangasinense) is an Austronesian language, and one of the eight major languages of the Philippines. It is the primary and predominant language of the entire province of Pangasinan and northern Tarlac, on the northern part of Luzon's central plains geographic region, most of whom belong to the Pangasinan ethnic group. Pangasinan is also spoken in southwestern La Union, as well as in the municipalities of Benguet, Nueva Vizcaya, Nueva Ecija, and Zambales that border Pangasinan. A few Aeta groups and most Sambal in Central Luzon's northern part also understand and even speak Pangasinan as well.

Central Luzon (Tagalog: Gitnang Luzon; Kapampangan: Kalibudtarang Luzon; Sambal: Botlay a Luzon; Pangasinan: Pegley a Luzon; Ilocano: Tengnga a Luzon), designated as Region III, is an administrative region in the Philippines. The region comprises seven provinces: Aurora, Bataan, Bulacan, Nueva Ecija, Pampanga (with its capital, City of San Fernando serving as the regional center), Tarlac, and Zambales; and two highly urbanized cities, Angeles and Olongapo. San Jose del Monte is the most populous city in the region. The region contains the largest plain in the country and produces most of the country's rice supply, earning itself the nickname "Rice Granary of the Philippines". It is also the region to have the most number of provinces.

The Pangasinan people (Pangasinan: Totoon Pangasinan), also known as Pangasinense, are an ethnolinguistic group native to the Philippines. Numbering 1,823,865 in 2010, they are the tenth largest ethnolinguistic group in the country. In the 2020 census Pangasinan speaking households made up roughly 1.3% of Philippine households. They live mainly in their native province of Pangasinan and the adjacent provinces of La Union and Tarlac, as well as Benguet, Nueva Ecija, Zambales, and Nueva Vizcaya. Smaller groups are found elsewhere in the Philippines and worldwide in the Filipino diaspora.