Earthquake with magnitude of ML 1.0 on date 31-08-2011 and time 16:51:39 (Italy) in region 1 km W Episcopia (PZ)

A magnitude ML 1.0 earthquake occured in region: 1 km W Episcopia (PZ), on

  • 31-08-2011 14:51:39 (UTC)
  • 31-08-2011 16:51:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.079, 16.087 at 11 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Episcopia PZ 1 1434 1434
Latronico PZ 7 4556 5990
Carbone PZ 7 638 6628
Teana PZ 8 613 7241
Fardella PZ 8 627 7868
San Severino Lucano PZ 8 1563 9431
Calvera PZ 9 387 9818
Francavilla in Sinni PZ 10 4215 14033
Viggianello PZ 12 3025 17058
Castelluccio Superiore PZ 12 824 17882
Chiaromonte PZ 12 1965 19847
Castelsaraceno PZ 13 1384 21231
San Chirico Raparo PZ 13 1084 22315
Castelluccio Inferiore PZ 13 2131 24446
Rotonda PZ 15 3494 27940
Castronuovo di Sant'Andrea PZ 15 1067 29007
Laino Borgo CS 17 1921 30928
San Martino d'Agri PZ 18 801 31729
Roccanova PZ 18 1543 33272
Laino Castello CS 19 848 34120
Senise PZ 19 7115 41235
San Costantino Albanese PZ 19 729 41964

Municipalities with at least 50000 inhabitants

An earthquake occurred to
67 Km SE of Potenza (67122 inhabitants)
79 Km SW of Matera (60436 inhabitants)
89 Km N of Cosenza (67546 inhabitants)
92 Km SW of Altamura (70396 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
Md 1.7
ML 1.0
2011-08-31
14:51:39
40.079 16.087 11 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1279479
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-08-31 14:51:39 ± 0.25
Latitude 40.0790 ± 0.0189
Longitude 16.0870 ± 0.0165
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1279479

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2316
Semi-minor axis of confidence ellipse (meter) 1000
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 30
Circular confidence region, given by single value of horizontal uncertainty (meter) 2523.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 193
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.45
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.28329
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1279479
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:17:44

Md:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1279479
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:17:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MGR.HHN. 2011-08-31T14:51:54.31 10.0 undecidable manual Pg 0 0 0
IV.SALB.HHZ. 2011-08-31T14:51:50.60 0.1 undecidable manual Sg 135 0.2833 0.478 90
IV.MMN.HHE. 2011-08-31T14:51:48.90 10.0 undecidable manual Pg 0 0 0
MN.CUC.HHZ. 2011-08-31T14:51:48.49 0.1 undecidable manual Sg 248 0.2248 0.093 99
IV.SIRI.HHN. 2011-08-31T14:51:47.80 0.1 undecidable manual Sg 302 0.197 0.23 96
IV.SALB.HHZ. 2011-08-31T14:51:45.03 0.1 undecidable manual Pg 135 0.2833 -0.502 89
IV.SIRI.HHN. 2011-08-31T14:51:44.01 0.1 undecidable manual Pg 302 0.197 -0.047 100
MN.CUC.HHZ. 2011-08-31T14:51:44.28 0.1 undecidable manual Pg 248 0.2248 -0.254 95
IV.CRAC.EHN. 2011-08-31T14:51:40.49 10.0 undecidable manual Pg 0 0 0
MN.CEL.HHE. 2011-08-31T14:51:33.31 10.0 undecidable manual Pg 0 0 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRAC.EHN. Md:0 13 END duration s
IV.CRAC.EHE. ML:0 0.000195 0.08 AML other m 2011-08-31T14:51:40.49
IV.SIRI.HHN. Md:2 24.5 END duration s
IV.SIRI.HHE. ML:1.1 6.5E-5 0.28 AML other m 2011-08-31T14:51:44.01
MN.CUC.HHN. ML:0.7 2.5E-5 0.72 AML other m 2011-08-31T14:51:44.28
MN.CUC.HHE. ML:0.7 3.5E-5 0.26 AML other m 2011-08-31T14:51:44.28
IV.SALB.HHN. ML:1 4.5E-5 0.22 AML other m 2011-08-31T14:51:45.03
IV.SALB.HHE. ML:1 5.5E-5 0.18 AML other m 2011-08-31T14:51:45.03
IV.MMN.HHN. ML:0 0.0001 0.8 AML other m 2011-08-31T14:51:48.90
IV.MMN.HHE. Md:0 10 END duration s
MN.CEL.HHE. Md:0 13 END duration s
MN.CUC.HHZ. Md:1.5 13.4 END duration s
IV.SALB.HHZ. Md:1.8 18 END duration s
IV.MGR.HHN. Md:0 11 END duration s
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download