Earthquake with magnitude of ML 1.0 on date 31-07-2020 and time 05:55:40 (Italy) in region 5 km S Sasso di Castalda (PZ)

A magnitude ML 1.0 earthquake occured in region: 5 km S Sasso di Castalda (PZ), on

  • 31-07-2020 03:55:40 (UTC)
  • 31-07-2020 05:55:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.44, 15.67 at 17 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
Sasso di Castalda PZ 5 835 835
Brienza PZ 5 4078 4913
Marsico Nuovo PZ 6 4098 9011
Sala Consilina SA 8 12664 21675
Paterno PZ 9 3368 25043
Atena Lucana SA 9 2336 27379
Padula SA 11 5368 32747
Satriano di Lucania PZ 12 2374 35121
Teggiano SA 13 7976 43097
Sassano SA 14 5013 48110
Abriola PZ 14 1531 49641
Sant'Angelo Le Fratte PZ 15 1429 51070
Monte San Giacomo SA 15 1572 52642
San Pietro al Tanagro SA 15 1695 54337
Marsicovetere PZ 15 5546 59883
Sant'Arsenio SA 16 2815 62698
Calvello PZ 16 1948 64646
Tito PZ 16 7332 71978
Tramutola PZ 17 3089 75067
Polla SA 17 5279 80346
Savoia di Lucania PZ 17 1127 81473
San Rufo SA 18 1754 83227
Pignola PZ 18 6962 90189
Montesano sulla Marcellana SA 19 6704 96893
Buonabitacolo SA 20 2549 99442

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km SW of Potenza (67122 inhabitants)
61 Km E of Battipaglia (50786 inhabitants)
81 Km E of Salerno (135261 inhabitants)
83 Km W of Matera (60436 inhabitants)
86 Km E of Cava de' Tirreni (53659 inhabitants)
86 Km SW of Altamura (70396 inhabitants)
91 Km SE of Avellino (54857 inhabitants)
94 Km S of Cerignola (58396 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 1.0 2020-07-31
03:55:40
40.44 15.67 17 2020-11-19
12:36:59
Bollettino Sismico Italiano INGV 82557891
Reviewed
Rev100
ML 0.9 2020-07-31
03:55:40
40.45 15.67 16 2020-07-31
04:01:39
Sala Sismica INGV-Roma 81501661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-31 03:55:40 ± 0.14
Latitude 40.44 ± 0.00
Longitude 15.67 ± 0.01
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 82557891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 628
Semi-minor axis of confidence ellipse (meter) 327
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 60
Circular confidence region, given by single value of horizontal uncertainty (meter) 630
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 72
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.04946
Epicentral distance of station farthest from the epicenter (degree) 0.31656
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1

Field Value
Value 1
Uncertainty 0.1
Num. used stations 7
Type of magnitude ML
Reference to an origin 82557891
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-09-02 09:09:02

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 81501661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-31 04:01:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MGR.HHZ. 2020-07-31T03:55:52.41 0.3 undecidable manual S 196 0.3166 105 0.08 71
IV.CMPR.HHZ. 2020-07-31T03:55:51.84 0.3 undecidable manual S 246 0.3049 106 -0.15 70
IX.SRN3.HNE.02 2020-07-31T03:55:48.59 0.3 undecidable manual S 285 0.1664 124 0.36 70
IV.MCEL.HHZ. 2020-07-31T03:55:48.33 0.3 undecidable manual S 139 0.1547 126 0.37 68
IV.CAGG.EHN. 2020-07-31T03:55:48.27 0.3 undecidable manual S 314 0.1664 124 0.04 74
IX.CGG3.HNN.01 2020-07-31T03:55:48.09 0.3 undecidable manual S 312 0.1493 127 0.26 71
IV.MGR.HHZ. 2020-07-31T03:55:47.43 0.3 undecidable manual P 196 0.3166 105 0.19 69
IV.SLCN.HHZ. 2020-07-31T03:55:46.27 0.3 undecidable manual S 208 0.0585 156 0.14 74
IV.CMPR.HHZ. 2020-07-31T03:55:46.64 0.3 undecidable manual P 246 0.3049 106 -0.4 67
IX.STN3.HNZ.01 2020-07-31T03:55:46.39 0.3 undecidable manual S 352 0.089 145 -0.19 73
IX.MRN3.HNN.01 2020-07-31T03:55:45.62 0.3 undecidable manual S 109 0.0495 159 -0.4 70
IX.CGG3.HNN.01 2020-07-31T03:55:44.59 0.3 undecidable manual P 312 0.1493 127 -0.05 74
IX.PGN3.HNE.02 2020-07-31T03:55:44.97 0.3 undecidable manual P 37 0.1628 124 0.15 72
IX.SRN3.HNE.02 2020-07-31T03:55:44.69 0.3 undecidable manual P 285 0.1664 124 -0.18 72
IX.TEGI.HNN.01 2020-07-31T03:55:44.14 0.3 undecidable manual P 238 0.1178 135 -0.09 74
IV.MCEL.HHZ. 2020-07-31T03:55:44.85 0.3 undecidable manual P 139 0.1547 126 0.14 72
IV.CAGG.EHN. 2020-07-31T03:55:44.85 0.3 undecidable manual P 314 0.1664 124 -0.02 74
IV.SLCN.HHZ. 2020-07-31T03:55:43.64 0.3 undecidable manual P 208 0.0585 156 -0.01 76
IX.STN3.HNZ.01 2020-07-31T03:55:43.86 0.1 positive manual P 352 0.089 145 -0.05 100
IX.MRN3.HNN.01 2020-07-31T03:55:43.42 0.3 undecidable manual P 109 0.0495 159 -0.17 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SLCN.HHN. ML:1.2 0.000133 0.26 AML other m 2020-07-31T03:55:46.39
IV.SLCN.HHE. ML:1.2 0.0001395 0.32 AML other m 2020-07-31T03:55:46.35
IV.SLCN.HNE. ML:1.1 0.0001246047595 0.2496 AML other m 2020-07-31T03:55:47.44
IV.MCEL.HHE. ML:1 7.095E-5 0.14 AML other m 2020-07-31T03:55:48.62
IV.MCEL.HNE. ML:1 6.444769E-5 0.16 AML other m 2020-07-31T03:55:48.63
IV.MCEL.HHN. ML:0.9 5.605E-5 0.2 AML other m 2020-07-31T03:55:48.55
IV.MCEL.HNN. ML:0.9 5.55283E-5 0.1984 AML other m 2020-07-31T03:55:48.55
IV.CMPR.HHN. ML:0.4 9.49E-6 0.38 AML other m 2020-07-31T03:55:52.02
IV.CMPR.HHE. ML:0.4 1.009E-5 0.82 AML other m 2020-07-31T03:55:52.48
IV.MGR.HHE. ML:0.4 1.066834E-5 0.1984 AML other m 2020-07-31T03:55:52.53
IV.MGR.HHN. ML:0.4 1.1672325E-5 0.3392 AML other m 2020-07-31T03:55:53.39
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download