Earthquake with magnitude of ML 1.2 on date 20-05-2013 and time 19:40:45 (Italy) in region 3 km E San Martino d'Agri (PZ)

A magnitude ML 1.2 earthquake occured in region: 3 km E San Martino d'Agri (PZ), on

  • 20-05-2013 17:40:45 (UTC)
  • 20-05-2013 19:40:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.23, 16.082 at 15 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
San Martino d'Agri PZ 3 801 801
San Chirico Raparo PZ 4 1084 1885
Gallicchio PZ 8 862 2747
Armento PZ 9 631 3378
Missanello PZ 9 566 3944
Carbone PZ 10 638 4582
Castronuovo di Sant'Andrea PZ 10 1067 5649
Castelsaraceno PZ 10 1384 7033
Calvera PZ 10 387 7420
Spinoso PZ 11 1462 8882
Roccanova PZ 11 1543 10425
Montemurro PZ 11 1235 11660
Teana PZ 13 613 12273
Fardella PZ 15 627 12900
Guardia Perticara PZ 15 552 13452
Aliano MT 16 1008 14460
Chiaromonte PZ 16 1965 16425
Sarconi PZ 17 1404 17829
Sant'Arcangelo PZ 17 6533 24362
Latronico PZ 17 4556 28918
Episcopia PZ 17 1434 30352
Grumento Nova PZ 17 1700 32052
Corleto Perticara PZ 18 2511 34563
Moliterno PZ 18 4062 38625
Gorgoglione MT 19 989 39614
Francavilla in Sinni PZ 19 4215 43829
Viggiano PZ 20 3329 47158
Cirigliano MT 20 375 47533

Municipalities with at least 50000 inhabitants

An earthquake occurred to
51 Km SE of Potenza (67122 inhabitants)
66 Km SW of Matera (60436 inhabitants)
78 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
ML 1.2 2013-05-20
17:40:45
40.2303 16.0823 15 2015-01-20
11:26:03
Bollettino Sismico Italiano INGV 4632651
Reviewed
Rev100
ML 1.1 2013-05-20
17:40:46
40.1808 16.0222 11 2014-10-21
12:08:56
Sala Sismica INGV-Roma 3563001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-05-20 17:40:45 ± 0.25
Latitude 40.2303 ± 0.0117
Longitude 16.0823 ± 0.0141
Depth (km) 15 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 4632651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1643
Semi-minor axis of confidence ellipse (meter) 328
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 220
Circular confidence region, given by single value of horizontal uncertainty (meter) 1640
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 216
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.03148
Epicentral distance of station farthest from the epicenter (degree) 0.40649
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 4632651
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:25:22

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 3563001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-05-20 17:54:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SALB.HHZ. 2013-05-20T17:41:00.64 0.3 undecidable manual S 150 0.4065 97 0.19 66
IV.MTSN.HHZ. 2013-05-20T17:40:55.97 0.3 undecidable manual S 278 0.2545 104 -0.06 71
IV.MCEL.HHZ. 2013-05-20T17:40:55.78 0.6 undecidable manual S 294 0.2338 106 0.36 45
IV.SALB.HHZ. 2013-05-20T17:40:54.21 0.3 undecidable manual P 150 0.4065 97 -0.08 69
IV.SIRI.HHZ. 2013-05-20T17:40:53.85 0.3 undecidable manual S 254 0.1709 116 0.17 70
IV.MCEL.HHZ. 2013-05-20T17:40:51.89 0.3 undecidable manual P 294 0.2338 106 0.5 65
IV.MTSN.HHZ. 2013-05-20T17:40:51.59 0.1 undecidable manual P 278 0.2545 104 -0.15 93
IV.SCHR.EHZ. 2013-05-20T17:40:50.84 0.3 undecidable manual S 189 0.0315 164 -0.07 73
IV.SIRI.HHZ. 2013-05-20T17:40:49.92 0.1 undecidable manual P 254 0.1709 116 -0.46 89
IV.SCHR.EHZ. 2013-05-20T17:40:48.81 0.1 undecidable manual P 189 0.0315 164 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SCHR.EHN. ML:1 0.000104 0.16 AML other m 2013-05-20T17:40:50.99
IV.SCHR.EHE. ML:1.2 0.0001688 0.2 AML other m 2013-05-20T17:40:51.05
IV.SIRI.HHE. ML:1.4 0.0001705 0.2 AML other m 2013-05-20T17:40:54.24
IV.SIRI.HHN. ML:1.3 0.0001335 1.56 AML other m 2013-05-20T17:40:54.34
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