tectonics Flashcards
(8 cards)
1
Q
🇳🇿2011 earthquake in Christchurch, New Zealand
A
- Widespread liquefaction in Christchurch due to sand-based soils with small particles.
- Underground pipelines damaged; vehicles became stuck in road surfaces.
- Some areas labelled as “red zones” where no rebuilding was allowed.
2
Q
🇳🇵2015 earthquake in Nepal
🏔️
A
- 🏔️ Landslides caused many deaths in the 2015 Nepal earthquake.
- 📅 The earthquake struck in April, before the rainy season, weakening rocks and sediments on the southern slopes of the Himalayas near Gorkha.
- 🧗 Landslides and avalanches, including one on Mount Everest, killed over 20 climbers.
- 🌧️ Monsoon rains worsened conditions, causing ongoing rockslides and mass movement for months.
3
Q
🇳🇿2011 earthquake in Christchurch, New Zealand Facts
earthquake
A
- 185 fatalities
- $30,000
- 6.3Mag
- instant speed of onset
- lasted seconded
- areal extent 220km
- medium spatial predictability
- frequency low
4
Q
🇨🇳sichuan, china , 2008
A
- <70,0000
- $130,000 - 150,000
- 7.9 Mag
- instant speed of onset
- lasted seconds
- areal extent = 1740km
- spatial predictability =low
- frequency = rare
5
Q
tohoku, japan 🇯🇵
tsunami💧
A
- over 15,000 fatalities
- $230,000 - 300,000
- 9.0 Mag
- speed of onset = 2 mins
- duration = 2 days
- areal extent = 18,000km
- spatial predictability = medium
- freqquency = rare
6
Q
🇮🇩Indonesia, banda aceh
tsunami 💧
A
- over 200,000 fatilies
- $10,000
- 9.1Mag
- speed of onset = 4 mins
- duration = 3 days
- areal extent= 19,000
- spatial predictability = medium
- frequency = very rare
7
Q
Usa, mount st helens (2010)
volcanic eruptions 🌋
A
- 57 fatalites
- $860
- VEI 5
- speed of onset = 9 weeks
- duration = 6 years
- areal extent = 600km
- spatial predicatbility = very low
- frequency = every 100 years
8
Q
indonesia, mount merapi (2010)
🌋 volcanic eruption
A
- over 300 fatalities
- $700
- VEI 4
- speed of onset = 1 month
- duration = 20 months
- areal extent = 750 km
- spatial predictability= very low
- frequency = every 10 years
