Question

• the richter scale

◦ depends upon direct measurements of ____ of earth’s ____ using seismic instruments
◦ >3.5 generally not felt
◦ 3.5 – 5.4 often felt, ______ cause damage
◦ under 6.0:
▪ slight damage to well ______ buildings
▪ can cause ______ damage to buildings that are constructed poorly
◦ 6.1 – 6.9
▪ can be ______ in areas up to 100 km across where people live
◦ 7.0 – 7.9
▪ ______ earthquake
▪ can cause serious damage over large areas
◦ 8+

Explanation:

To solve this fill - in - the - blank about the Richter Scale, we refer to the knowledge of seismology (a sub - field of Geology, which is part of Natural Science):

1. First blank:

The Richter Scale depends on the direct measurement of the amplitude of the Earth's seismic waves using seismic instruments. Seismic waves are the vibrations that travel through the Earth during an earthquake, and the amplitude of these waves is what the Richter Scale measures.

2. Second blank (for the 3.5 - 5.4 range):

In the range of 3.5 - 5.4 on the Richter Scale, earthquakes are often felt, and they rarely cause damage. This is because the energy released at this scale is usually not high enough to cause significant structural harm in most cases.

3. Third blank (for "well ______ buildings"):

For well - constructed buildings, earthquakes under 6.0 on the Richter Scale will only cause slight damage. Well - constructed buildings are designed to withstand a certain level of seismic activity.

4. Fourth blank (for "poorly constructed buildings"):

For buildings that are constructed poorly, earthquakes under 6.0 can cause considerable damage. These buildings do not have the proper structural integrity to resist the forces from even relatively small - magnitude earthquakes.

5. Fifth blank (for 6.1 - 6.9 range):

Earthquakes in the 6.1 - 6.9 range can be destructive in areas up to 100 km across where people live. The energy released at this scale is enough to cause significant damage to structures and the environment in populated areas.

6. Sixth blank (for 7.0 - 7.9 range):

Earthquakes in the 7.0 - 7.9 range are considered major earthquakes. They release a large amount of energy and can cause serious damage over large areas.

Final Answers (filling in the blanks in order):

1. amplitude
2. seismic waves
3. rarely
4. constructed
5. considerable
6. destructive
7. major

Answer:

To solve this fill - in - the - blank about the Richter Scale, we refer to the knowledge of seismology (a sub - field of Geology, which is part of Natural Science):

1. First blank:

The Richter Scale depends on the direct measurement of the amplitude of the Earth's seismic waves using seismic instruments. Seismic waves are the vibrations that travel through the Earth during an earthquake, and the amplitude of these waves is what the Richter Scale measures.

2. Second blank (for the 3.5 - 5.4 range):

In the range of 3.5 - 5.4 on the Richter Scale, earthquakes are often felt, and they rarely cause damage. This is because the energy released at this scale is usually not high enough to cause significant structural harm in most cases.

3. Third blank (for "well ______ buildings"):

For well - constructed buildings, earthquakes under 6.0 on the Richter Scale will only cause slight damage. Well - constructed buildings are designed to withstand a certain level of seismic activity.

4. Fourth blank (for "poorly constructed buildings"):

For buildings that are constructed poorly, earthquakes under 6.0 can cause considerable damage. These buildings do not have the proper structural integrity to resist the forces from even relatively small - magnitude earthquakes.

5. Fifth blank (for 6.1 - 6.9 range):

Earthquakes in the 6.1 - 6.9 range can be destructive in areas up to 100 km across where people live. The energy released at this scale is enough to cause significant damage to structures and the environment in populated areas.

6. Sixth blank (for 7.0 - 7.9 range):

Earthquakes in the 7.0 - 7.9 range are considered major earthquakes. They release a large amount of energy and can cause serious damage over large areas.

Final Answers (filling in the blanks in order):

1. amplitude
2. seismic waves
3. rarely
4. constructed
5. considerable
6. destructive
7. major