Earthquake with magnitude of ML 0.9 on date 01-08-2011 and time 21:04:54 (Italy) in region 6 km SW Craco (MT)

A magnitude ML 0.9 earthquake occured in region: 6 km SW Craco (MT), on

  • 01-08-2011 19:04:54 (UTC)
  • 01-08-2011 21:04:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.324, 16.436 at 21 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
Craco MT 6 745 745
Tursi MT 9 5037 5782
Montalbano Jonico MT 12 7357 13139
Pisticci MT 13 17768 30907
Colobraro MT 15 1266 32173
Sant'Arcangelo PZ 16 6533 38706
Valsinni MT 17 1544 40250
Aliano MT 17 1008 41258
Rotondella MT 18 2657 43915
Ferrandina MT 19 8853 52768
Stigliano MT 20 4361 57129

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km SW of Matera (60436 inhabitants)
57 Km S of Altamura (70396 inhabitants)
64 Km SE of Potenza (67122 inhabitants)
70 Km W of Taranto (201100 inhabitants)
90 Km S of Bitonto (55540 inhabitants)
96 Km SW of Bari (326344 inhabitants)
99 Km S of Molfetta (59874 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 0.9
2011-08-01
19:04:54
40.324 16.436 21 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1267139
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-08-01 19:04:54 ± 0.69
Latitude 40.3240 ± 0.0243
Longitude 16.4360 ± 0.0307
Depth (km) 21 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1267139

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2759
Semi-minor axis of confidence ellipse (meter) 2185
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 38
Circular confidence region, given by single value of horizontal uncertainty (meter) 3748.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 190
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.55
Epicentral distance of station closest to the epicenter (degree) 0.04137
Epicentral distance of station farthest from the epicenter (degree) 0.45596
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1267139
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:00:17

Md:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1267139
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:00:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SIRI.HHN. 2011-08-01T19:05:10.21 0.6 undecidable manual Sg 252 0.456 -0.609 52
IV.SALB.HHN. 2011-08-01T19:05:10.56 0.6 undecidable manual Sg 189 0.4515 -0.121 60
IV.SCHR.EHN. 2011-08-01T19:05:06.94 0.6 undecidable manual Sg 246 0.3013 0.47 58
IV.SALB.HHN. 2011-08-01T19:05:03.58 0.3 undecidable manual Pg 189 0.4515 -0.276 88
IV.SIRI.HHN. 2011-08-01T19:05:03.63 0.6 undecidable manual Pg 252 0.456 -0.3 58
IV.SCHR.EHN. 2011-08-01T19:05:02.07 0.3 undecidable manual Pg 246 0.3013 0.651 81
IV.CRAC.EHE. 2011-08-01T19:05:01.09 0.3 undecidable manual Sg 359 0.0414 0.001 100
IV.CRAC.EHE. 2011-08-01T19:04:58.35 0.3 undecidable manual Pg 359 0.0414 0.035 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRAC.EHN. ML:0 0.000125 0.2 AML other m 2011-08-01T19:04:58.35
IV.CRAC.EHE. Md:1.5 15.8 END duration s
IV.SCHR.EHN. Md:1.8 19 END duration s
IV.SCHR.EHE. ML:0.7 2.5E-5 40.44 AML other m 2011-08-01T19:05:02.07
IV.SALB.HHN. Md:1.8 18.2 END duration s
IV.SALB.HHE. ML:1.1 4.0E-5 0.3 AML other m 2011-08-01T19:05:03.58
IV.SIRI.HHN. Md:1.7 15.4 END duration s
IV.SIRI.HHE. ML:0.9 2.0E-5 1.94 AML other m 2011-08-01T19:05:03.63
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download