| | | | |
| | |
| Positions |
Code |
Description |
|
| 1-4 | a4 | Data sources: |
| | |
NCat – |
Kondorskaya N.V., Shebalin N.V. (eds.)
New catalog of strong earthquakes in the USSR from ancient times through 1975.
"Nauka", Moscow, 1977, 536 p. (In Russian).
Kondorskaya N.V., Shebalin N.V. (eds.)
New catalog of strong earthquakes in the USSR from ancient times through 1977.
World Data Center A for Solid Earth Geophysics, Report SE-31, NOAA, Boulder, Colorado, USA,
1982, 608 p. |
| | |
EqSU – |
Basic catalogue of strong earthquakes in the USSR territory.
From year-books: "Earthquakes in the USSR in ... year" (1975-1978),
"Nauka", Moscow, 1978-1982. (In Russian). |
| 5-6 | i 2 | Region number: |
| | |
01 – |
Carpathians |
07 – |
Baikal |
13 – |
Chukotka |
| | |
02 – |
Crimea and Lower Kuban' |
08 – |
Yakutia and Northeast |
14 – |
Arctic Basin |
| | |
03 – |
Caucasus |
09 – |
Primor'e and Amur |
15 – |
Baltic Shield |
| | |
04 – |
Western Turkmenia |
10 – |
Sakhalin |
16 – |
European part of the USSR, Urals, |
| | |
05 – |
Middle Asia and Kazakhstan |
11 – |
Kuril Islands |
|
and Western Siberia |
| | |
06 – |
Altai and Saiany |
12 – |
Kamchatka |
|
| 7-11 | i 5 | Year, "–" means B.C. |
| 12 | a1 | Symbol for year: |
| | |
* – |
year supposed; |
| | |
R – |
inserted value of year is introduced to keep file time order. |
| 13-14 | i 2 | Month. |
| 15 | a1 | Symbol for month: |
| | |
* – |
month supposed; |
| | |
R – |
inserted value of month is introduced to keep file time order. |
| 16-17 | i 2 | Day. |
| 18 | a1 | Symbol for day: |
| | |
* – |
day supposed; |
| | |
R – |
inserted value of day is introduced to keep file time order. |
| 19-20 | i 2 | Hours. |
| 21-22 | i 2 | Minutes. |
| 23-25 | f3.1 | Seconds. |
| 26 | a1 | Symbol for time (hour, minute, second): |
| | |
* – |
time supposed; |
| | |
R – |
inserted value of time is introduced to keep file time order. |
| 27-28 | i 2 | Error code for origin time determination: |
| | |
00 – |
± 1 sec |
05 – |
± 1 min |
10 – |
± 1 month |
| | |
01 – |
± 2 sec |
06 – |
± 10 min |
11 – |
± 1 year |
| | |
02 – |
± 5 sec |
07 – |
± 1 hour |
12 – |
± 10 years |
| | |
03 – |
± 10 sec |
08 – |
± 6 hours |
13 – |
± 100 years |
| | |
04 – |
± 20 sec |
09 – |
± 1 day |
14 – |
± 1000 years |
| 29-33 | f5.2 | Geographical latitude of epicentre in degrees: |
| | |
– – |
S, southern latitude; |
| | |
+ – |
N, northern latitude. |
| 34-39 | f6.2 | Geographical longitude of epicentre in degrees: |
| | |
– – |
W, west longitude; |
| | |
+ – |
E, east longitude. |
| 40 | a1 | Symbol for epicentre: |
| | |
* – |
epicentre supposed; |
| | |
G – |
region number in catalogue does not meet the epicentre coordinates; |
| | |
P – |
coordinates of geometrical centre of possible epicentre location
zone, given in catalogue, are listed; |
| | |
blank – |
epicentre lies outside the regions. |
| 41 | i 1 | Error code for epicentre coordinates determination
in degrees: |
| | |
0 – |
± 0.01 |
3 – |
± 0.1 |
6 – |
± 1 |
| | |
1 – |
± 0.02 |
4 – |
± 0.2 |
7 – |
± 2 |
| | |
2 – |
± 0.05 |
5 – |
± 0.5 |
8 – |
± 5 |
| 42-44 | i 3 | Focal depth in kilometers. |
| 45 | a1 | Symbol for focal depth:
* – supposed focal depth value. |
| 46 | i 1 | Error code for focal depth determination
(H – focal depth value). |
| | |
Instrumental determinations (δH) :
|
Macroseismic determinations (error limits) :
|
|
| | |
0 – |
± 0.02H |
3 – |
H/1.2 – 1.2H |
|
|
| | |
1 – |
± 0.05H |
4 – |
H/1.5 – 1.5H |
|
|
| | |
2 – |
± 0.1H |
5 – |
H/2 – 2H |
|
|
| | |
3 – |
± 0.2H |
6 – |
H/3 – 3H |
|
|
| | |
4 – |
± 0.5H |
7 – |
H/6 – 6H |
|
|
| | |
5 – |
± H |
|
– |
|
|
| | |
6 – |
± 2H |
|
– |
|
|
| 47 | a1 | Focal depth determination code: |
| | |
* – |
based on macroseismic information; |
| | |
blank – |
instrumental determination. |
| 48-49 | f2.1 | Magnitude (as a rule, surface-wave, horizontal
component or transformed to it). |
| 50 | a1 | Symbol for magnitude:
* – supposed magnitude value. |
| 51-54 | a4 | Explanation of "magnitude" field: |
| | | |
MLHB, MLHC, MLVB, MLVC, MLH, MLV, ML, MLB, MLC –
surface-wave magnitude
(symbols H and V mean horizontal or vertical component correspondingly,
symbols B and C mean intermediate or long-period seismometers correspondingly);
MLHD – MLH corrected for deep shocks, depth > 70 km;
MPV, MPVA, MPVB – body-wave magnitude
(symbols A and B mean short-period and intermediate-period seismometers),
MPVA – is corrected for depth (for depth > 70 km),
MPVB = MPVA+0.3;
KLMH, *MPV – MLH calculated from K and MPV correspondingly;
KMPV – MPV calculated from K (for deep shocks, depth > 70 km);
MTAU, MINT, MRAD – magnitude calculated from record duration, from macroseismic
data or from maximum epicentral distance for station shock registration. |
| 55 | i 1 | Error code for magnitude determination. |
| | |
|
δ M (number of independent instrumental determinations) :
|
Characteristic of macroseismic data :
|
| | |
0 – |
± 0.1 (more than 20 stations); |
2 – |
reliable map of isoseists, at least 4 isoseists; |
| | |
1 – |
± 0.2 (11 – 20 stations); |
3 – |
incomplete map of isoseists, depth is defined with |
| | |
2 – |
± 0.3 (6 – 10 stations); |
|
an error in 1.5 times; |
| | |
3 – |
± 0.5 (3 – 5 stations); |
4 – |
intensity in epicentre is known and depth |
| | |
4 – |
± 0.7 (1 station, unreliable); |
|
is defined with an error in 2 times; |
| | |
5 – |
± 1.0 (indirect instrumental data – range of registration, |
5 – |
uncertainly evaluated intensity; |
| | |
|
number of stations); |
6 – |
indistinct mentioning. |
| | |
6 – |
± 2.0 ( – ). |
|
| 56-57 | i 2 | Number of independent instrumental determinations
used for calculation of magnitude mean value. |
| 58-59 | i 2 | Intensity 1 at the epicentre (MSK-64 scale),
e.g. if intensity is 6, then "06", if intensity is 5-6, then "05". |
| 60-61 | i 2 | Intensity 2 at the epicentre (MSK-64 scale),
e.g. if intensity is 6, then "06", if intensity is 5-6, then "06". |
| 62 | a1 | Symbol for intensity at the epicentre:
* – supposed value of intensity at the epicentre. |
| 63 | i 1 | Error code for epicentral intensity (I0)
determination in degrees. |
| | |
I0
|
δ I0 :
|
Characteristic of macroseismic data : 0
|
| | |
0 – |
± 2 |
indistinct mentioning; |
| | |
1 – |
± 1 |
inexact or incomplete description; |
| | |
2 – |
± 0.5 |
exact description on several signs; two closed isoseists; |
| | |
3 – |
± 0.5 |
complete map of isoseists, three closed isoseists; |
| | |
4 – |
± 0.5 |
complete map of isoseists, four closed isoseists; |
| | |
5 – |
± 0.5 |
complete map of isoseists, five closed isoseists; |
| | |
6 – |
± 0.5 |
complete map of isoseists, six closed isoseists; |
| | |
7 – |
± 0.5 |
complete map of isoseists, seven closed isoseists. |
| 64-65 | i 2 | Number of points on isoseismal map
with known intensity. |
| 66-68 | i 3 | Focal depth based on instrumental data,
in kilometers. |
| 69 | i 1 | Error code for focal depth value determination based
on instrumental data. |
| 70-71 | i 2 | Number of stations used for focal depth determination
based on instrumental data. |
| 72-74 | i 3 | Focal depth based on isoseismals, in kilometers. |
| 75-77 | i 3 | Focal depth based on relations between
focal depth, magnitude and intensity at the epicentre. |
| 78-80 | f3.1 | Surface-wave magnitude value
(as a rule horizontal component, intermediate-period seismometers,
if the component or
instrument type are not specified). |
| 81 | i 1 | Error code for MLHB value determination. |
| 82-83 | i 2 | Number of stations for MLHB value determnation. |
| 84-86 | f3.1 | Surface-wave magnitude value
(horizontal component, long-period seismometers). |
| 87 | i 1 | Error code for MLHC value determination. |
| 88-89 | i 2 | Number of stations for MLHC value determination. |
| 90-92 | f3.1 | Surface-wave magnitude value
(vertical component, intermediate-period seismometers). |
| 93 | i 1 | Error code for MLVB value determination. |
| 94-95 | i 2 | Number of stations for MLVB value determination. |
| 96-98 | f3.1 | Body-wave magnitude value
(vertical component, intermediate-period seismometers). |
| 99 | i 1 | Error code for MPVB value determination. |
| 100-101 | i 2 | Number of stations for MPVB value determination. |
| 102-104 | f3.1 | Body-wave magnitude value
(vertical component, short-period seismometers). |
| 105 | i 1 | Error code for MPVA value determination. |
| 106-107 | i 2 | Number of stations for MPVA value determination. |
| 108-110 | f3.1 | Magnitute value, calculated from
record period duration. |
| 111-112 | i 2 | Number of stations for MTAU value determination. |
| 113-115 | f3.1 | Magnitude value based on macroseismic data
MINT. |
| 116-118 | f3.1 | Energy class. |
| 119-120 | i 2 | Value of minor semiaxis of epicentral coordinates
determination error ellipse, in kilometers. |
| 121-123 | i 3 | Value of major semiaxis of epicentral coordinates
determination error ellipse, in kilometers. |
| 124-127 | i 3 | Azimuth of major semiaxis of epicentral coordinates
determination error ellipse, in degrees. |
| 128 | a1 | Macroseismic data existance code: |
| | |
I – | Source contains data about mean radii of isoseismals or about macroseismic effect in different points. |
| 129-130 | a2 | Shock sequence code: |
| | |
A – | aftershock; |
| | |
E – | foreshock; |
| | |
M – | main shock
(or foreshocks and/or afterhocks existance is indicated); |
| | |
S – | the shock belongs to a swarm; |
| | |
? – | after these signs means doubt. |
| 131-132 | i 2 | Earthquake's detailed description code: |
| | |
D – | the Catalogue contains a special article
with detalled description of the earthquake; |
| | |
N – | the Catalogue contains the name of the earthquake. |
| 133-134 | i 2 | Tsunami code: |
| | |
T – | the earthquake was accompanied by tsunami; |
| | |
T? – | tsunami supposed. |
| 135-137 | i 3 | Code of contradictions, mistakes or inaccuracy in the
sources, used in the Catalogue: |
| | |
# – | contradictions or mistakes in the sources; |
| | |
V – | inaccuracy in the sources; |
| | |
? – | the catalogue contains notes like
"vague data" or "uncertain interpretation"; |
| | |
M## – | contradiction of macroseismic and
instrumental data. |
| 138-144 | 7x | Blanks. |
| 145-148 | i 4 | Record number. |
| 149-150 | 2x | Blanks.
|
Data distributed under license