Erika's+Earthquake+Page

Back to Erika's Page EARTHQUAKES! Week 3 Earthquake Questions Where do earthquakes come from?  Earthquakes come from plates underground that keep moving. They move because something disturbs them. Then they cause vibrations. The vibrations are called seismic waves. This causes an earthquake.

 Is a volcano related to an earthquake?  An earthquake is related to a volcano. If an earthquake happens in a place with a volcano, than it could be an early sign of a volcano eruption.

 How do the plates move?  The plates move because something squashed them or they got separated. There are around 20 large plates around the Earth's crust. When they get squashed or stretched, they form rocks around the edges and push with a great force that causes an earthquake.

 How long do they go for?  Earthquakes can take a few minutes. That would do a lot of major damage. Small earthquakes can last around a few seconds.

Week 3 18/2/11 Extra Information Earthquakes release an really big amount of energy and are able to destroy bridges, buildings, and even entire cities in just a few minutes.

 Bam Earthquake - December 26, 2003 <span style="font-family: 'Comic Sans MS',cursive; font-size: 16px;"> On December 26, 2003 at 5:26 AM, an earthquake shook the small town of Bam in the Kerman province of Iran. The earthquake had a magnitude of 6.5 on the Richter scale.

<span style="font-family: 'Comic Sans MS',cursive; font-size: 16px;">Hyogo-Ken Nanbu Earthquake - January 17, 1995 <span style="font-family: 'Comic Sans MS',cursive; font-size: 16px;"> On January 17, 1995 at 8:46 PM, an earthquake of magnitude 7.2 devastated the city of Kobe, one of Japan's most important ports. The earthquake killed approximately 5,090 people with over 29,000 injured and missing. Over 100,000 buildings were completely destroyed, leaving around one-fifth of the Kobe's 1.5 million people homeless.

<span style="font-family: 'Comic Sans MS',cursive; font-size: 16px;">Northridge Earthquake - January 17, 1994 <span style="font-family: 'Comic Sans MS',cursive; font-size: 16px;"> On January 17, 1994 at 4:31 AM, an earthquake shook Northridge, a suburb of Los Angeles in the San Fernando Valley. The earthquake was a magnitude of 6.7 on the Richter scale but only caused a small amount of damage since this is one of the best earthquake-prepared areas in the world. Most people were asleep at the time.

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<span style="background-color: #f2e515; color: #1bbe1b; font-family: Impact,Charcoal,sans-serif; font-size: 26px;">Week 4 22/2/11 <span style="background-color: #f2e515; color: #1bbe1b; font-family: Impact,Charcoal,sans-serif; font-size: 26px;"><span style="color: #000000; font-family: arial,helvetica,sans-serif; font-size: 25px; line-height: 38px;"> <span style="display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 42px; text-align: center;"><span style="font-family: arial,helvetica,sans-serif; font-size: 25px; line-height: 38px;">****<span style="display: block; display: inline !important; font-family: 'Arial Black',Gadget,sans-serif; font-size: 42px; text-align: center;">EARTHQUAKE! **** <span style="font-family: 'Comic Sans MS',cursive; font-size: 16px;">There was recently an earthquake in New Zealand. The magnitude on the Richter scale was 6.3. Buildings that survived the earthquake before didn't survive this earthquake. We pray that they all will recover from all the damage that this earthquake has caused.

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<span style="background-color: #000000; color: #f42cbb; font-family: Impact,Charcoal,sans-serif; font-size: 20px; margin: 0px; padding: 0px;">Week 6 11/3/11 <span style="display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 42px; text-align: center;">EARTHQUAKE! <span style="font-family: 'Comic Sans MS',cursive; font-size: 16px; margin: 0px; padding: 0px;">There was an earthquake in Japan today at around 4:46 PM! The magnitude was 8.9 on the Ricther scale. It was the biggest earthquake they have ever experienced in the country! The quake has struck only 10 kilometres underground. We pray that they all will recover from all the damage that this earthquake has caused.

Week 7 15/3/11 <span style="background-color: #f2f16c; font-family: 'Comic Sans MS',cursive; font-size: 21px;">﻿Week 7 Earthquake Questions <span style="font-family: 'Comic Sans MS',cursive; font-size: 16px;">What is the epicentre of an earthquake? <span style="font-family: 'Comic Sans MS',cursive; font-size: 16px;"> The epicentre of an earthquake is the place where the earthquake is on the Earth's surface.

<span style="font-family: 'Comic Sans MS',cursive; font-size: 16px;">How do aftershocks occur? <span style="font-family: 'Comic Sans MS',cursive; font-size: 16px;"> It happens the same way an earthquake happens except it's smaller. Depending on the size of the mainshock, the aftershock can be strong or weak. It could happen days, weeks months or even years after the main earthquake.

<span style="font-family: 'Comic Sans MS',cursive; font-size: 16px;">How does a seismograph work? <span style="font-family: 'Comic Sans MS',cursive; font-size: 16px;"> The seismograph has a pen hanging over the top of it just touching a piece of paper called a drum. The drum has a motor to move the paper around. When an earthquake happens, the drum moves. The pen doesn't move at all. The pen doesn't move because a weight is holding it. Then it makes a mark on the drum.