def get_amplitude(st, dt, seed_id):
'''ampl_n = 0
ampl_e = 0
tr_n = st.select(component="N")
if tr_n != None or len(tr_n)>0:
ampl_n = max(abs(tr_n[0].data))
tr_e = st.select(component="E")
if tr_e != None or len(tr_e)>0:
ampl_e = max(abs(tr_e[0].data))
ampl = max(ampl_n, ampl_e)'''
#stream correcting
with NamedTemporaryFile() as tf:
respf = tf.name
old_iris_client = iris.Client()
# fetch RESP information from "old" IRIS web service, see obspy.fdsn
# for accessing the new IRIS FDSN web services
arr = seed_id.split('.')
old_iris_client.resp(arr[0],
arr[1],
arr[2],
arr[3],
dt,
dt + 1800,
filename=respf)
# make a copy to keep our original data
st_orig = st.copy()
# define a filter band to prevent amplifying noise during the deconvolution
pre_filt = (0.005, 0.006, 30.0, 35.0)
# this can be the date of your raw data or any date for which the
# SEED RESP-file is valid
date = dt
seedresp = {
'filename': respf, # RESP filename
# when using Trace/Stream.simulate() the "date" parameter can
# also be omitted, and the starttime of the trace is then used.
'date': date,
# Units to return response in ('DIS', 'VEL' or ACC)
'units': 'DIS'
}
# Remove instrument response using the information from the given RESP file
st.simulate(paz_remove=None, pre_filt=pre_filt, seedresp=seedresp)
####################
ampl = max(abs(st[0].data))
for each in st:
a = max(abs(each.data))
if a > ampl:
ampl = a
#print ampl
return ampl
def processList(data):
#print data[0]
print "SLEEP", data[6], data[7]
time.sleep(float(data[7] / 1000))
dt = UTCDateTime(data[5])
timeSeriesClient = iris.Client()
client = Client("IRIS")
netStation = data[0].split('.')
network = netStation[0]
station = netStation[1]
magList = []
try:
respData = timeSeriesClient.resp(network, station, '*', '*', dt)
#print "SEEDLIST SUCCESS ", respData[0]
seedList = parseResponse(respData.decode())
for each2 in seedList:
arr = each2.split('.')
try:
st = client.get_waveforms(arr[0], arr[1], arr[2], arr[3], dt,
dt + 1800)
print "TIMESERIES SUCCESS", each2
ampl = get_amplitude(st, dt, each2)
local_mag = calculate_local_magnitude(data[3], data[4],
data[1], data[2], ampl)
#print local_mag
magList.append(local_mag)
#print "Appended to magnitude list"
except:
#print "TIMESERIES FAIL", each2
continue
print magList
if len(magList) > 0:
#print "Magnitude list obtained"
retVal = str(data[6])+ "," + data[0]+ ","+ data[1] +"," +\
data[2] +","+ str(sum(magList)/float(len(magList)))
#print "Returning value:", retVal
return retVal
else:
return 'FAIL'
except:
print 'SEEDLIST FAIL ', data[0]
return 'FAIL'
def main():
eventID = 4417721
client = Client("IRIS")
cat = client.get_events(eventid=eventID)
#print cat
timeSeriesClient = iris.Client()
eventLatitude = 40.8287
eventLongitude = -125.1338
eventTime = '2012-04-12T07:15:49.1700'
eventMagnitude = 7.1
magUnit = 'MW'
dt = UTCDateTime(eventTime)
print "EARTHQUAKE", str(eventLatitude), str(
eventLongitude), str(eventMagnitude) + " " + magUnit
netStationList = set()
#getting list of stations for US networks
for each_net in USNETS:
try:
inventory = client.get_stations(network = each_net, latitude=eventLatitude,\
longitude=eventLongitude, maxradius=5)
#print type(inventory)
for each in inventory:
each_content = each.get_contents()
lat, lon = get_coordinates(each[0])
channelList = each_content['stations']
for each_channel in channelList:
netStationList.add((each_channel.split()[0], lat, lon))
except:
#print "Failed for", each_net
continue
#print inventory.get_contents()
#print netStationList
#getting time series data in a loop
for each1 in netStationList:
netStation = each1[0].split('.')
network = netStation[0]
station = netStation[1]
magList = []
try:
data = timeSeriesClient.resp(network, station, '*', '*', dt)
#print "SEEDLIST SUCCESS ", each1[0]
seedList = parseResponse(data.decode())
for each2 in seedList:
arr = each2.split('.')
try:
st = client.get_waveforms(arr[0], arr[1], arr[2], arr[3],
dt, dt + 1800)
#print "TIMESERIES SUCCESS", each2
ampl = get_amplitude(st, dt, each2)
local_mag = calculate_local_magnitude(
eventLatitude, eventLongitude, each1[1], each1[2],
ampl)
magList.append(local_mag)
#print each2, each1[1], each1[2], local_mag
#print "TIMESERIES SUCCESS", each2
except:
#print "TIMESERIES FAIL", each2
continue
if len(magList) > 0:
print each1[0], each1[1], each1[2], sum(magList) / float(
len(magList))
except:
#print 'SEEDLIST FAIL ', each1[0]
continue