Turkmenistan
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Turkmenistan terletak di Asia dan memiliki klasifikasi risiko seismik Moderate. Total 1 gempa bumi telah tercatat di negara ini. Gempa bumi terbesar yang tercatat di negara ini mencapai magnitudo 5,1. Dengan populasi 7.057.841 dan luas daratan 488.100 km², peristiwa seismik dapat memiliki implikasi signifikan terhadap infrastruktur dan keselamatan publik.
Tinjauan Seismik
Turkmenistan's seismicity is dominated by the Kopet Dag fold-and-thrust belt, a mountain range that forms the country's southern border with Iran. The Kopet Dag represents the northernmost expression of the Arabia-Eurasia collision zone and is an active compressional orogen where thrust and reverse [[fault]] systems produce frequent moderate-to-large earthquakes. The Kopet Dag Fault, the dominant structure, runs along the base of the range for over 1,000 kilometres and has been the source of catastrophic historical earthquakes. The convergence rate across the Kopet Dag is approximately 8–10 millimetres per year. The capital Ashgabat sits directly at the foot of the Kopet Dag range, on alluvial fans built by rivers descending from the mountains, in an extremely high seismic hazard zone.
The most catastrophic earthquake in Turkmenistan's history was the 1948 Ashgabat earthquake (magnitude 7.3), which struck at 01:12 local time while the population slept. Estimated death tolls range from 110,000 to 176,000 — representing the near-total destruction of a city then home to approximately 200,000 people. The disaster was suppressed from public knowledge during the Soviet era, and accurate casualty figures were not published until the 1990s. The earthquake caused complete collapse of predominantly single-story clay brick construction throughout the city. The [[aftershock]] sequence persisted for months. Earlier, the 1929 Kopet Dag earthquake (magnitude 7.2) killed approximately 3,800 people. The 1895 earthquake near Krasnovodsk (now Turkmenbashi) on the Caspian Sea also caused significant damage.
The deeper tectonic framework of the Kopet Dag involves the transmission of Arabia-Eurasia compressional stresses northward through Iran into the frontal ranges of Turkmenistan. The Kopet Dag is bounded to the north by the flat plains of the Karakum Desert — essentially the stable southern margin of the Turan Platform. The fault at the mountain front concentrates slip and builds up elastic strain between major earthquakes, a classic locked fault geometry. GPS measurements confirm ongoing shortening of approximately 8 mm/yr. The thick alluvial sediments of the Ashgabat Plain amplify [[seismic-wave]] energy compared to bedrock sites in the mountains. The [[epicenter]] distribution of Turkmen earthquakes traces the Kopet Dag fault system clearly, with secondary seismicity associated with the Balkhan Range in the west and the Badkhyz Plateau in the south.
Gempa Terbaru
| Mag. | Lokasi | Waktu | |
|---|---|---|---|
| Tidak ada gempa bumi terbaru. | |||
Peristiwa Historis yang Menonjol
Earthquakes Near Major Cities in Turkmenistan
Pertanyaan yang Sering Diajukan
Turkmenistan has a moderate level of seismic activity. Significant earthquakes occur periodically. A total of 1 earthquakes have been recorded in Turkmenistan's seismic history.
The largest recorded earthquake in Turkmenistan had a magnitude of 5.1. Earthquakes of this size can cause significant damage depending on depth, location, and local building standards.
Turkmenistan has had 1 recorded earthquakes. This count includes events of all magnitudes detected by seismic monitoring networks. The actual number of earthquakes may be higher, as smaller events can go undetected.
Turkmenistan is classified in the "Moderate" seismic zone, located in Asia. Seismic zones indicate the relative level of earthquake hazard based on historical activity, geological conditions, and proximity to tectonic plate boundaries.
Selama gempa bumi, Merunduk, Berlindung, dan Bertahan. Berlindung di bawah meja atau meja yang kokoh, lindungi kepala dan leher Anda, dan bertahan hingga guncangan berhenti. Jika di luar ruangan, pindah ke area terbuka jauh dari bangunan dan kabel listrik.
Risiko gempa bumi suatu negara dinilai menggunakan beberapa faktor: kedekatan dengan batas lempeng tektonik, seismisitas historis (frekuensi dan magnitudo kejadian masa lalu), kondisi geologi, kepadatan penduduk di zona seismik, dan penegakan standar bangunan. QuakeFYI menetapkan zona seismik dari 0 (tanpa risiko) hingga 4 (sangat tinggi) berdasarkan faktor-faktor tersebut.
Zona seismik adalah wilayah geografis yang diklasifikasikan berdasarkan tingkat bahaya gempa bumi. Zona 0 memiliki risiko yang dapat diabaikan, Zona 1 memiliki risiko rendah, Zona 2 memiliki risiko sedang, Zona 3 memiliki risiko tinggi, dan Zona 4 memiliki risiko sangat tinggi. Zona-zona ini ditentukan oleh data gempa bumi historis, kondisi tektonik, dan kondisi geologi.
Negara-negara di sepanjang Cincin Api Pasifik mengalami gempa bumi paling banyak. Jepang, Indonesia, Chili, Filipina, dan Iran secara konsisten mencatat aktivitas seismik tertinggi. Amerika Serikat (terutama Alaska dan California), Turki, dan Meksiko juga termasuk negara-negara dengan aktivitas seismik tertinggi.
Kepadatan penduduk memperbesar risiko gempa bumi karena lebih banyak orang dan infrastruktur yang terpapar potensi kerusakan. Gempa bumi magnitudo 7,0 di kota yang padat penduduknya dapat menyebabkan ribuan korban, sementara kejadian yang sama di area tak berpenghuni mungkin tidak menyebabkan korban. Standar bangunan dan kesiapsiagaan darurat sangat mengurangi risiko di area padat penduduk.
Kepadatan seismik mengukur konsentrasi aktivitas gempa bumi relatif terhadap luas daratan suatu negara, dinyatakan sebagai gempa bumi per 1.000 kilometer persegi. Kepadatan seismik yang tinggi menunjukkan aktivitas gempa bumi yang sering per satuan luas, membantu membandingkan risiko seismik antara negara-negara dengan ukuran berbeda.
Metrik Seismik
Aktivitas Seismik di Sekitar
Ringkasan Tahunan
Keselamatan Gempa Bumi
Turkmenistan berada di zona risiko seismik sedang. Kesiapsiagaan dasar terhadap gempa bumi disarankan.
- Merunduk, Berlindung, dan Bertahan saat terjadi guncangan
- Simpan peralatan darurat dengan air, makanan, dan pertolongan pertama
- Identifikasi tempat aman di setiap ruangan jauh dari jendela dan benda berat
- Ketahui rute evakuasi tsunami jika berada di area pantai