**The Science of earthquake here--> - ABC News**

Calculating Earthquake Magnitude (Modified from material found in a Geology Lab Manual – source unknown.) The Richter scale was developed by Charles Richter in the 1930s as a quick method of classifying the size... A magnitude 7.0 earthquake struck southern Alaska on November 30, 2018. With an epicenter close to the city of Anchorage, the quake initially sparked a tsunami warning, which was ultimately cancelled.

**Calculating magnitude of an earthquake? Yahoo Answers**

Similarly, an earthquake of magnitude 9.0 would be 10 4 times as powerful as an earthquake that measured 5.0. Using the distance from the S-P interval time and the maximum amplitude, both of which are recorded on a seismograph, experts can use the base 10 logarithms to find the magnitude of the earthquake.... Earthquake Magnitude Calculator. Calculate the size and effects of an earth quake from the known values of amplitude and distance correction factor using this earthquake magnitude calculator.

**How are earthquakes recorded? How are earthquakes measured**

where I 1 is the intensity of the larger earthquake and I 2 is the intensity of the smaller earthquake. We are trying to determine the ratio of the larger magnitude M 1 to the smaller magnitude I 2 or M 1-M 2.... An earthquake with a revised magnitude of 6.6 has struck 174km north-northwest of the city of Ternate in Indonesia's Molucca islands. The quake hit at a depth of 60.5km on Sunday, the US

**Earthquakes Living Lab Finding Epicenters & Measuring**

The earthquake scale name of Richter Scale earthquake was used for measuring how big the earthquake was by giving a numeric code for the level of intensity of earthquake in a range between 1 to 10 in Richter scale. The intensity was rising ten fold with every increase of 1 scale. However, it was not accurate when measuring large earthquake using with the Richter Scale. The moment magnitude... Earthquake magnitude Earthquake magnitude is a measure of the “size,” or amplitude, of the seismic waves generated by an earthquake source and recorded by seismographs. (The types and nature of these waves are described in the section Seismic waves .)

## How To Find The Magnitude Of An Earthquake

### Earthquakes and Math Math Central

- The AS-1 Seismograph â€“Magnitude Determination
- EarthquakeMagnitudes City College of San Francisco
- Earthquake Size
- Indonesia stuck by magnitude 6.6 earthquake smh.com.au

## How To Find The Magnitude Of An Earthquake

### 2 days ago · An earthquake at an estimated magnitude of 6.4 has struck off the coast of south east Japan. The quake was 39km (24 miles) deep and centred 116 km south southeast of Kagoshima.

- This Java Script calculator gives an estimate of the amount of energy released during an earthquake. The estimate is computed from the Richter magnitude; energy is …
- Today scientists calculate the seismic moment of an earthquake when they want to talk about how big it was. Seismic moment (M 0 ) is simply the product of the average amount of slip that happened, the area of the fault that slipped, and the rigidity of the rock.
- Estimating Earthquake Magnitude from AS-1 Seismograms: Magnitude is an estimate of the energy release or size of an earthquake. Magnitude estimates are calculated from the amplitude of wave energy on a seismograph adjusting for the distance of the seismograph station from the earthquake (seismic waves spread out and are absorbed during
- There are a number of ways to measure the magnitude of an earthquake. The first widely-used method, the Richter scale , was developed by Charles F. Richter in 1934. It used a formula based on amplitude of the largest wave recorded on a specific type of seismometer and the distance between the earthquake and the seismometer.

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