netmag
The netmag table contains estimates of network magnitudes of different types for a given event. Each network magnitude has a unique magid. Station magnitudes used to compute the network magnitude are in the stamag table.
|
FIELD |
COLUMN |
STORAGE |
EXTERNAL |
CHARACTER |
DESCRIPTION |
|
NUMBER |
TYPE |
FORMAT |
POSITION |
||
|
1 |
magid |
number(9) |
i9 |
1-9 |
network magnitude identifier |
|
2 |
net |
varchar2(8) |
a8 |
11-18 |
unique network identifier |
|
3 |
arid |
number(9) |
i9 |
20-28 |
origin identifier |
|
4 |
evid |
number(9) |
i9 |
30-38 |
event identifier |
|
5 |
magtype |
varchar2(6) |
a6 |
40-45 |
magnitude type (ms, mb, etc.) |
|
6 |
nsta |
number(8) |
i8 |
47-54 |
number of stations used |
|
7 |
magnitude |
f1oat(24) |
f7.2 |
56-62 |
magnitude |
|
8 |
uncertainty |
f1oat(24) |
f7.2 |
64-70 |
magnitude uncertainty |
|
9 |
auth |
varchar2(15) |
a15 |
72-86 |
source/originator |
|
10 |
commid |
number(9) |
i9 |
88-96 |
comment identifier |
|
11 |
Iddate |
date |
a19 |
98-116 |
load date |
|
Keys: |
Primary |
magid |
|
|
|
Unique |
magid, orid |
|
|
|
Foreign |
evid, net, arid, commid |
|
|
Data: |
Descriptive |
net, magtype |
|
|
|
Measurement |
magnitude, nsta, uncertainity |
|
|
|
Administrative |
lddate |
|