Petropavlovsk-Kamchatsky in the context of "Avachinsky"

The Kamchatka Peninsula (Russian: полуостров Камчатка, romanized: poluostrov Kamchatka, pronounced [pəlʊˈostrəf kɐmˈt͡ɕætkə]) is a 1,250-kilometre-long (777 mi) peninsula in the Russian Far East, with an area of about 270,000 km (100,000 sq mi). The Sea of Okhotsk bounds the peninsula's western coastline, immediately offshore of the peninsula and below the Bering Sea runs the 9,600-metre-deep (31,496 ft) Kuril–Kamchatka Trench. Its eastern coastline is the Bering Sea, part of the Pacific Ocean.

The Kamchatka Peninsula, the Commander Islands, and Karaginsky Island constitute Kamchatka Krai of the Russian Federation. The majority of the 322,079 inhabitants are ethnic Russians, with about 13,000 being Koryaks (2014). More than half of the population lives in Petropavlovsk-Kamchatsky (179,526 in 2010) and nearby Yelizovo (38,980). The Kamchatka Peninsula contains the volcanoes of Kamchatka, a UNESCO World Heritage Site, that form part of the Ring of Fire.

Koryaksky or Koryakskaya Sopka (Russian: Коря́кская со́пка) is an active volcano on the Kamchatka Peninsula in the Russian Far East. It lies within sight of Kamchatka Krai's administrative center, Petropavlovsk-Kamchatsky. Together with neighbouring Avachinsky, it is considered a Decade Volcano, worthy of particular study in light of its history of explosive eruptions and proximity to populated areas.

Kamchatka Krai (Russian: Камча́тский край, romanized: Kamchatskiy kray, IPA: [kɐmˈtɕatskʲɪj kraj]) is a federal subject of Russia (a krai), situated in the Russian Far East. It is administratively part of the Far Eastern Federal District. Its administrative center and largest city is Petropavlovsk-Kamchatsky, home to over half of its population of 291,705 (2021 census).

Kamchatka Krai was formed on 1 July 2007, as a result of the merger of Kamchatka Oblast and Koryak Autonomous Okrug, based on the voting in a referendum on the issue on 23 October 2005. The okrug retains the status of a special administrative division of the krai, under the name of Koryak Okrug.

Yelizovo (Russian: Е́лизово) is a town in Kamchatka Krai, Russia, located on the Avacha River 32 kilometers (20 mi) northwest of Petropavlovsk-Kamchatsky with a population of 39,569 (2010 census);

Kamchatka Oblast (Russian: Камча́тская о́бласть, romanized: Kamchatskaya oblast) was, until being incorporated into Kamchatka Krai on July 1, 2007, a federal subject of Russia (an oblast). To the north, it bordered Magadan Oblast and Chukotka Autonomous Okrug. Koryak Okrug was located in the northern part of the oblast. Including the autonomous okrug, the total area of the oblast was 472,300 square kilometres (182,400 sq mi), encompassing the southern half of the Kamchatka Peninsula. The administrative center of Kamchatka Oblast was the city of Petropavlovsk-Kamchatsky. Population: 358,801 (2002 census); 466,096 (1989 Soviet census).

Kamchatka's natural resources include coal, gold, mica, pyrites, and natural gas. Most of the inhabitants live in the administrative center, Petropavlovsk-Kamchatsky. The main employment sectors are fishing, forestry, tourism (a growing industry), and the Russian military. There is still a large military presence on the peninsula; the home base of Russia's Pacific submarine fleet is across Avacha Bay from Petropavlovsk-Kamchatsky at the Rybachy base. There are also several air force bases and radar sites in Kamchatka.

Avacha Bay (Russian: Авачинская губа, Авачинская бухта) is a Pacific Ocean bay on the southeastern coast of the Kamchatka Peninsula. It is 24 km (15 mi) long and 3 km (2 mi) wide (at the mouth), with a maximum depth of 26 m (85 ft).

The Avacha River flows into the bay. The port city of Petropavlovsk-Kamchatsky and the closed town of Vilyuchinsk lie on the coast of the bay. It is the main transport gateway to the Kamchatka region. The bay freezes in the winter.

Khalaktyrskoye (Russian: Халактырское озеро) is a lake on the eastern outskirts of the city Petropavlovsk-Kamchatsky in Kamchatka Krai, Russia. It occupies an area of 22 square kilometers (8.5 sq mi), maximum depth is 121 metres (397 ft). Its main outflow is River Halaktyrka.