Earthquakes: Significant Earthquake Dataset
In Juanin2691/toolsEarthquakes: Tools for cleaning and ploting data from The Significant Earthquake Database
Description
Usage
Format
Source
Description
Contains information on destructive earthquakes from
2150 B.C. to the present that meet at least one of the following
criteria: Moderate damage (approximately $1 million or more), 10 or
more deaths, Magnitude 7.5 or greater, Modified Mercalli Intensity X or
greater, or the earthquake generated a tsunami.
Usage
1
Format
A data frame with 6065 rows and 47 variables:
I_Dinteger The unique numeric identifier of the record.
FLAG_TSUNAMIcharacter When a tsunami was generated by
an earthquake, "Tsu" appears in the Assoc Tsu column. There should also
be a "TSU" link in the Assoc column which is linked to the tsunami
event database. The TSU link will display additional tsunami event
information in a new browser window.
YEARinteger Format +/-yyyy (-is B.C, +is A.D.)
The Date and Time are given in Universal Coordinated Time (also known
as Greenwich Mean Time). The local date may be one day different.
MONTHinteger Valid values: 1-12
DAYinteger Valid values: 1-31 (where months apply)
HOURinteger Valid values: 0-23
MINUTEinteger Valid values: 0-59
SECONDcharacter Valid values: 0-59
FOCAL_DEPTHinteger Valid values: 0 to 700 km
The depth of the earthquake is given in kilometers.
EQ_PRIMARYdouble Valid values: 0.0 to 9.9
The value in this column contains the primary earthquake magnitude.
Magnitude measures the energy released at the source of the earthquake.
EQ_MAG_MWdouble Valid values: 0.0 to 9.9
The Mw magnitude is based on the moment magnitude scale. Moment is a
physical quantity proportional to the slip on the fault times the area
of the fault surface that slips; it is related to the total energy
released in the EQ.
EQ_MAG_MSdouble Valid values: 0.0 to 9.9
The Ms magnitude is the surface-wave magnitude of the earthquake.
The magnitude is a measure of seismic energy. The magnitude scale is
logarithmic. An increase of one in magnitude represents a tenfold
increase in the recorded wave amplitude.
EQ_MAG_MBcharacter Valid values: 0.0 to 9.9
The Mb magnitude is the compressional body wave (P-wave) magnitude.
The magnitude is a measure of seismic energy. The magnitude scale is
logarithmic. An increase of one in magnitude represents a tenfold
increase in the recorded wave amplitude.
EQ_MAG_MLdouble Valid values: 0.0 to 9.9
The ML magnitude was the original magnitude relationship defined by
Richter and Gutenberg for local earthquakes in 1935.
EQ_MAG_MFAcharacter Valid values: 0.0 to 9.9
The Mfa magnitudes are computed from the felt area, for earthquakes
that occurred before seismic instruments were in general use.
EQ_MAG_UNKdouble Valid values: 0.0 to 9.9
The computational method for the earthquake magnitude was unknown and
could not be determined from the published sources.
INTENSITYinteger Valid values: 1 to 12
The Modified Mercalli Intensity (Int) is given in Roman Numerals
(converted to numbers in the digital database).
COUNTRYcharacter The Country where the Earthquake
occurred
STATEcharacter The two-letter State or
Province abbreviation where the Earthquake occurred.
LOCATION_NAMEcharacter The Country, State, Province or City
where the Earthquake occurred. This is only an approximate geographic
location. Events prior to 1900 were not instrumentally located,
therefore, the location given is based on the latitude and longitude of
the city where the damage occurred.
LATITUDEdouble Valid values: -90 to +90
Latitude: 0 to 90 (Northern Hemisphere) -90 to 0 (Southern Hemisphere)
LONGITUDEdouble Valid values: -180 to +180
Longitude: 0 to 180 (Eastern Hemisphere) -180 to 0 (Western Hemisphere)
REGION_CODEinteger Regional boundaries defined as follows:
10 = Central, Western and S. Africa
15 = Northern Africa
20 = Antarctica
30 = East Asia
40 = Central Asia and Caucasus
50 = Kamchatka and Kuril Islands
60 = S. and SE. Asia and Indian Ocean
70 = Atlantic Ocean
80 = Bering Sea
90 = Caribbean
100 = Central America
110 = Eastern Europe
120 = Northern and Western Europe
130 = Southern Europe
140 = Middle East
150 = North America and Hawaii
160 = South America
170 = Central and South Pacific
DEATHSinteger Valid values: 0 to 1100000
DEATHS_DESCRIPTIONinteger Valid values: 0 to 4
When a description was found in the historical literature instead of
an actual number of deaths.
0 = None
1 = Few (~1 to 50 deaths)
2 = Some (~51 to 100 deaths)
3 = Many (~101 to 1000 deaths)
4 = Very Many (~1001 or more deaths)
MISSINGcharacter Valid values: 0 to 1100000
MISSING_DESCRIPTIONinteger Valid values: 0 to 4
When a description was found in the historical literature instead of
an actual number of missing.
0 = None
1 = Few (~1 to 50 missing)
2 = Some(~51 to 100 missing)
3 = Many (~101 to 1000 missing)
4 = Very Many (~1001 or more missing)
INJURIESinteger Valid values: 0 to 30000
INJURIES_DESCRIPTIONinteger Valid values: 0 to 4
When a description was found in the historical literature instead of an
actual number of injuries.
0 = None
1 = Few (~1 to 50 injuries)
2 = Some(~51 to 100 injuries)
3 = Many (~101 to 1000 injuries)
4 = Very Many (~1001 or more injuries)
DAMAGE_MILLIONS_DOLLARScharacter Damage in Millions of
Dollars from the Earthquake: The value in the Damage column should be
multipled by 1,000,000 to obtain the actual dollar amount.
DAMAGE_DESCRIPTIONinteger Valid values: 0 to 4
For those events not offering a monetary evaluation of damage, the
following five-level scale was used to classify damage (1990 dollars).
0 = NONE
1 = LIMITED (roughly corresponding to less than $1 million)
2 = MODERATE (~$1 to $5 million)
3 = SEVERE (~>$5 to $24 million)
4 = EXTREME (~$25 million or more)
HOUSES_DESTROYEDinteger Valid values: 0 to 1100000
HOUSES_DESTROYED_DESCRIPTIONinteger Valid values: 0 to 4
For those events not offering an exact number of houses destroyed,
the following four-level scale was used to classify the destruction.
0 = None
1 = Few (~1 to 50 houses)
2 = Some (~51 to 100 houses)
3 = Many (~101 to 1000 houses)
4 = Very Many (~1001 or more houses)
HOUSES_DAMAGEDinteger Valid values: 0 to 1100000
HOUSES_DAMAGED_DESCRIPTIONinteger Valid values: 0 to 4
For those events not offering an exact number of houses damaged, the
following four-level scale was used to classify the damage and was
listed.
0 = None
1 = Few (~1 to 50 houses)
2 = Some (~51 to 100 houses)
3 = Many (~101 to 1000 houses)
4 = Very Many (~1001 or more houses)
TOTAL_DEATHSinteger Valid values: 0 to 1100000
Total number of deaths from the earthquake and
secondary effects.
TOTAL_DEATHS_DESCRIPTIONinteger Valid values: 0 to 4
When a description was found in the historical literature instead of
an actual number of deaths, this value was coded and listed.
0 = None
1 = Few (~1 to 50 deaths)
2 = Some (~51 to 100 deaths)
3 = Many (~101 to 1000 deaths)
4 = Very Many (~1001 or more deaths)
TOTAL_MISSINGcharacter Valid values: 0 to 1100000
Whenever possible, total number of missing from the earthquake and
secondary effects.
TOTAL_MISSING_DESCRIPTIONcharacter Valid values: 0 to 4
When a description was found in the historical literature instead of an
actual number of missing.
0 = None
1 = Few (~1 to 50 missing)
2 = Some(~51 to 100 missing)
3 = Many (~101 to 1000 missing)
4 = Very Many (~1001 or more missing)
TOTAL_INJURIESinteger Valid values: 0 to 30000
Whenever possible, total number of injuries from the earthquake and
secondary effects.
TOTAL_INJURIES_DESCRIPTIONinteger Valid values: 0 to 4
When a description was found in the historical literature instead of an
actual number of injuries.
0 = None
1 = Few (~1 to 50 injuries)
2 = Some(~51 to 100 injuries)
3 = Many (~101 to 1000 injuries)
4 = Very Many (~1001 or more injuries)
TOTAL_DAMAGE_MILLIONS_DOLLARScharacter The value in the
Damage column should be multipled by 1,000,000 to obtain the actual
dollar amount. When a dollar amount for damage was found in the
literature, it was listed in the Damage column in millions of U.S.
dollars.
TOTAL_DAMAGE_DESCRIPTIONinteger Valid values: 0 to 4
For those events not offering a monetary evaluation of damage, the
following five-level scale was used to classify damage (1990 dollars).
0 = NONE
1 = LIMITED (roughly corresponding to less than $1 million)
2 = MODERATE (~$1 to $5 million)
3 = SEVERE (~>$5 to $24 million)
4 = EXTREME (~$25 million or more)
TOTAL_HOUSES_DESTROYEDinteger Valid values: 0 to 1100000
TOTAL_HOUSES_DESTROYED_DESCRIPTIONinteger Valid values:
0 to 4
For those events not offering an exact number of houses destroyed, the
following four-level scale was used to classify the destruction.
0 = None
1 = Few (~1 to 50 houses)
2 = Some (~51 to 100 houses)
3 = Many (~101 to 1000 houses)
4 = Very Many (~1001 or more houses)
TOTAL_HOUSES_DAMAGEDinteger Valid values: 0 to 1100000
TOTAL_HOUSES_DAMAGED_DESCRIPTIONinteger Valid values:
0 to 4
For those events not offering an exact number of houses damaged, the
following four-level scale was used to classify the damage.
0 = None
1 = Few (~1 to 50 houses)
2 = Some (~51 to 100 houses)
3 = Many (~101 to 1000 houses)
4 = Very Many (~1001 or more houses)
Source
https://www.ngdc.noaa.gov/nndc/struts/form?t=101650&s=1&d=1
Juanin2691/toolsEarthquakes documentation built on May 28, 2019, 5:41 p.m.
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Note that we can't provide technical support on individual packages. You should contact the package authors for that.
Description Usage Format Source
Description
Contains information on destructive earthquakes from 2150 B.C. to the present that meet at least one of the following criteria: Moderate damage (approximately $1 million or more), 10 or more deaths, Magnitude 7.5 or greater, Modified Mercalli Intensity X or greater, or the earthquake generated a tsunami.
Usage
1 |
Format
A data frame with 6065 rows and 47 variables:
I_Dinteger The unique numeric identifier of the record.
FLAG_TSUNAMIcharacter When a tsunami was generated by an earthquake, "Tsu" appears in the Assoc Tsu column. There should also be a "TSU" link in the Assoc column which is linked to the tsunami event database. The TSU link will display additional tsunami event information in a new browser window.
YEARinteger Format +/-yyyy (-is B.C, +is A.D.) The Date and Time are given in Universal Coordinated Time (also known as Greenwich Mean Time). The local date may be one day different.
MONTHinteger Valid values: 1-12
DAYinteger Valid values: 1-31 (where months apply)
HOURinteger Valid values: 0-23
MINUTEinteger Valid values: 0-59
SECONDcharacter Valid values: 0-59
FOCAL_DEPTHinteger Valid values: 0 to 700 km The depth of the earthquake is given in kilometers.
EQ_PRIMARYdouble Valid values: 0.0 to 9.9 The value in this column contains the primary earthquake magnitude. Magnitude measures the energy released at the source of the earthquake.
EQ_MAG_MWdouble Valid values: 0.0 to 9.9 The Mw magnitude is based on the moment magnitude scale. Moment is a physical quantity proportional to the slip on the fault times the area of the fault surface that slips; it is related to the total energy released in the EQ.
EQ_MAG_MSdouble Valid values: 0.0 to 9.9 The Ms magnitude is the surface-wave magnitude of the earthquake. The magnitude is a measure of seismic energy. The magnitude scale is logarithmic. An increase of one in magnitude represents a tenfold increase in the recorded wave amplitude.
EQ_MAG_MBcharacter Valid values: 0.0 to 9.9 The Mb magnitude is the compressional body wave (P-wave) magnitude. The magnitude is a measure of seismic energy. The magnitude scale is logarithmic. An increase of one in magnitude represents a tenfold increase in the recorded wave amplitude.
EQ_MAG_MLdouble Valid values: 0.0 to 9.9 The ML magnitude was the original magnitude relationship defined by Richter and Gutenberg for local earthquakes in 1935.
EQ_MAG_MFAcharacter Valid values: 0.0 to 9.9 The Mfa magnitudes are computed from the felt area, for earthquakes that occurred before seismic instruments were in general use.
EQ_MAG_UNKdouble Valid values: 0.0 to 9.9 The computational method for the earthquake magnitude was unknown and could not be determined from the published sources.
INTENSITYinteger Valid values: 1 to 12 The Modified Mercalli Intensity (Int) is given in Roman Numerals (converted to numbers in the digital database).
COUNTRYcharacter The Country where the Earthquake occurred
STATEcharacter The two-letter State or Province abbreviation where the Earthquake occurred.
LOCATION_NAMEcharacter The Country, State, Province or City where the Earthquake occurred. This is only an approximate geographic location. Events prior to 1900 were not instrumentally located, therefore, the location given is based on the latitude and longitude of the city where the damage occurred.
LATITUDEdouble Valid values: -90 to +90 Latitude: 0 to 90 (Northern Hemisphere) -90 to 0 (Southern Hemisphere)
LONGITUDEdouble Valid values: -180 to +180 Longitude: 0 to 180 (Eastern Hemisphere) -180 to 0 (Western Hemisphere)
REGION_CODEinteger Regional boundaries defined as follows: 10 = Central, Western and S. Africa 15 = Northern Africa 20 = Antarctica 30 = East Asia 40 = Central Asia and Caucasus 50 = Kamchatka and Kuril Islands 60 = S. and SE. Asia and Indian Ocean 70 = Atlantic Ocean 80 = Bering Sea 90 = Caribbean 100 = Central America 110 = Eastern Europe 120 = Northern and Western Europe 130 = Southern Europe 140 = Middle East 150 = North America and Hawaii 160 = South America 170 = Central and South Pacific
DEATHSinteger Valid values: 0 to 1100000
DEATHS_DESCRIPTIONinteger Valid values: 0 to 4 When a description was found in the historical literature instead of an actual number of deaths. 0 = None 1 = Few (~1 to 50 deaths) 2 = Some (~51 to 100 deaths) 3 = Many (~101 to 1000 deaths) 4 = Very Many (~1001 or more deaths)
MISSINGcharacter Valid values: 0 to 1100000
MISSING_DESCRIPTIONinteger Valid values: 0 to 4 When a description was found in the historical literature instead of an actual number of missing. 0 = None 1 = Few (~1 to 50 missing) 2 = Some(~51 to 100 missing) 3 = Many (~101 to 1000 missing) 4 = Very Many (~1001 or more missing)
INJURIESinteger Valid values: 0 to 30000
INJURIES_DESCRIPTIONinteger Valid values: 0 to 4 When a description was found in the historical literature instead of an actual number of injuries. 0 = None 1 = Few (~1 to 50 injuries) 2 = Some(~51 to 100 injuries) 3 = Many (~101 to 1000 injuries) 4 = Very Many (~1001 or more injuries)
DAMAGE_MILLIONS_DOLLARScharacter Damage in Millions of Dollars from the Earthquake: The value in the Damage column should be multipled by 1,000,000 to obtain the actual dollar amount.
DAMAGE_DESCRIPTIONinteger Valid values: 0 to 4 For those events not offering a monetary evaluation of damage, the following five-level scale was used to classify damage (1990 dollars). 0 = NONE 1 = LIMITED (roughly corresponding to less than $1 million) 2 = MODERATE (~$1 to $5 million) 3 = SEVERE (~>$5 to $24 million) 4 = EXTREME (~$25 million or more)
HOUSES_DESTROYEDinteger Valid values: 0 to 1100000
HOUSES_DESTROYED_DESCRIPTIONinteger Valid values: 0 to 4 For those events not offering an exact number of houses destroyed, the following four-level scale was used to classify the destruction. 0 = None 1 = Few (~1 to 50 houses) 2 = Some (~51 to 100 houses) 3 = Many (~101 to 1000 houses) 4 = Very Many (~1001 or more houses)
HOUSES_DAMAGEDinteger Valid values: 0 to 1100000
HOUSES_DAMAGED_DESCRIPTIONinteger Valid values: 0 to 4 For those events not offering an exact number of houses damaged, the following four-level scale was used to classify the damage and was listed. 0 = None 1 = Few (~1 to 50 houses) 2 = Some (~51 to 100 houses) 3 = Many (~101 to 1000 houses) 4 = Very Many (~1001 or more houses)
TOTAL_DEATHSinteger Valid values: 0 to 1100000 Total number of deaths from the earthquake and secondary effects.
TOTAL_DEATHS_DESCRIPTIONinteger Valid values: 0 to 4 When a description was found in the historical literature instead of an actual number of deaths, this value was coded and listed. 0 = None 1 = Few (~1 to 50 deaths) 2 = Some (~51 to 100 deaths) 3 = Many (~101 to 1000 deaths) 4 = Very Many (~1001 or more deaths)
TOTAL_MISSINGcharacter Valid values: 0 to 1100000 Whenever possible, total number of missing from the earthquake and secondary effects.
TOTAL_MISSING_DESCRIPTIONcharacter Valid values: 0 to 4 When a description was found in the historical literature instead of an actual number of missing. 0 = None 1 = Few (~1 to 50 missing) 2 = Some(~51 to 100 missing) 3 = Many (~101 to 1000 missing) 4 = Very Many (~1001 or more missing)
TOTAL_INJURIESinteger Valid values: 0 to 30000 Whenever possible, total number of injuries from the earthquake and secondary effects.
TOTAL_INJURIES_DESCRIPTIONinteger Valid values: 0 to 4 When a description was found in the historical literature instead of an actual number of injuries. 0 = None 1 = Few (~1 to 50 injuries) 2 = Some(~51 to 100 injuries) 3 = Many (~101 to 1000 injuries) 4 = Very Many (~1001 or more injuries)
TOTAL_DAMAGE_MILLIONS_DOLLARScharacter The value in the Damage column should be multipled by 1,000,000 to obtain the actual dollar amount. When a dollar amount for damage was found in the literature, it was listed in the Damage column in millions of U.S. dollars.
TOTAL_DAMAGE_DESCRIPTIONinteger Valid values: 0 to 4 For those events not offering a monetary evaluation of damage, the following five-level scale was used to classify damage (1990 dollars). 0 = NONE 1 = LIMITED (roughly corresponding to less than $1 million) 2 = MODERATE (~$1 to $5 million) 3 = SEVERE (~>$5 to $24 million) 4 = EXTREME (~$25 million or more)
TOTAL_HOUSES_DESTROYEDinteger Valid values: 0 to 1100000
TOTAL_HOUSES_DESTROYED_DESCRIPTIONinteger Valid values: 0 to 4 For those events not offering an exact number of houses destroyed, the following four-level scale was used to classify the destruction. 0 = None 1 = Few (~1 to 50 houses) 2 = Some (~51 to 100 houses) 3 = Many (~101 to 1000 houses) 4 = Very Many (~1001 or more houses)
TOTAL_HOUSES_DAMAGEDinteger Valid values: 0 to 1100000
TOTAL_HOUSES_DAMAGED_DESCRIPTIONinteger Valid values: 0 to 4 For those events not offering an exact number of houses damaged, the following four-level scale was used to classify the damage. 0 = None 1 = Few (~1 to 50 houses) 2 = Some (~51 to 100 houses) 3 = Many (~101 to 1000 houses) 4 = Very Many (~1001 or more houses)
Source
https://www.ngdc.noaa.gov/nndc/struts/form?t=101650&s=1&d=1
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