Earthquake with magnitude of ML 1.0 on date 21-07-2019 and time 13:21:42 (Italy) in region 1 km SW Atena Lucana (SA)

A magnitude ML 1.0 earthquake occured in region: 1 km SW Atena Lucana (SA), on

  • 21-07-2019 11:21:42 (UTC)
  • 21-07-2019 13:21:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.45, 15.55 at 8 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Atena Lucana SA 1 2336 2336
San Pietro al Tanagro SA 6 1695 4031
Sala Consilina SA 6 12664 16695
Sant'Arsenio SA 6 2815 19510
Teggiano SA 7 7976 27486
Brienza PZ 7 4078 31564
San Rufo SA 8 1754 33318
Polla SA 9 5279 38597
Sant'Angelo Le Fratte PZ 11 1429 40026
Monte San Giacomo SA 12 1572 41598
Sassano SA 12 5013 46611
Sasso di Castalda PZ 12 835 47446
Satriano di Lucania PZ 13 2374 49820
Savoia di Lucania PZ 14 1127 50947
Pertosa SA 14 690 51637
Caggiano SA 14 2765 54402
Corleto Monforte SA 15 592 54994
Padula SA 15 5368 60362
Marsico Nuovo PZ 16 4098 64460
Sacco SA 17 492 64952
Auletta SA 17 2336 67288
Paterno PZ 17 3368 70656
Sant'Angelo a Fasanella SA 18 635 71291
Vietri di Potenza PZ 18 2832 74123
Petina SA 18 1159 75282
Salvitelle SA 18 560 75842
Roscigno SA 18 817 76659
Piaggine SA 19 1311 77970
Tito PZ 19 7332 85302
Valle dell'Angelo SA 19 248 85550

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km SW of Potenza (67122 inhabitants)
51 Km E of Battipaglia (50786 inhabitants)
72 Km E of Salerno (135261 inhabitants)
77 Km E of Cava de' Tirreni (53659 inhabitants)
82 Km SE of Avellino (54857 inhabitants)
92 Km W of Matera (60436 inhabitants)
93 Km E of Scafati (50787 inhabitants)
95 Km W of Altamura (70396 inhabitants)
95 Km E of Castellammare di Stabia (66466 inhabitants)
96 Km SW of Cerignola (58396 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.0 2019-07-21
11:21:42
40.45 15.55 8 2019-07-21
11:27:55
Sala Sismica INGV-Roma 70766181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-21 11:21:42 ± 0.11
Latitude 40.45 ± 0.01
Longitude 15.55 ± 0.01
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 70766181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 583
Semi-minor axis of confidence ellipse (meter) 412
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 321
Circular confidence region, given by single value of horizontal uncertainty (meter) 580
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 66
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.06025
Epicentral distance of station farthest from the epicenter (degree) 0.35613
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 70766181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-21 11:27:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IX.PGN3.HHZ.02 2019-07-21T11:21:51.91 0.3 undecidable manual S 56 0.2248 109 0.6 63
IV.CMPR.HHZ. 2019-07-21T11:21:51.76 0.3 undecidable manual S 236 0.2284 108 0.31 68
IX.VDS3.HNE.01 2019-07-21T11:21:49.30 0.1 undecidable manual P 342 0.3103 50 0.06 94
IV.SIRI.HHZ. 2019-07-21T11:21:49.67 0.1 undecidable manual P 138 0.3561 50 -0.36 88
IV.MRLC.HHE. 2019-07-21T11:21:49.63 0.1 undecidable manual P 351 0.3148 50 0.31 89
IX.STN3.HNZ.02 2019-07-21T11:21:47.06 0.6 undecidable manual S 42 0.1133 124 -0.36 46
IX.PGN3.HHZ.02 2019-07-21T11:21:47.71 0.1 undecidable manual P 56 0.2248 109 0.26 92
IV.CMPR.HHZ. 2019-07-21T11:21:47.37 0.1 undecidable manual P 236 0.2284 108 -0.16 94
IV.MCEL.HHZ. 2019-07-21T11:21:47.45 0.1 undecidable manual P 122 0.2248 109 -0.01 97
IT.SLC1.HGZ. 2019-07-21T11:21:46.22 0.6 undecidable manual S 147 0.0603 141 0.31 47
IX.SRN3.HNZ. 2019-07-21T11:21:46.50 0.3 undecidable manual S 300 0.0827 133 0.01 75
IV.SLCN.HHZ. 2019-07-21T11:21:44.45 0.1 undecidable manual P 132 0.0827 133 -0.22 95
IX.SRN3.HNZ. 2019-07-21T11:21:44.35 0.1 undecidable manual P 300 0.0827 133 -0.31 94
IT.SLC1.HGZ. 2019-07-21T11:21:44.34 0.1 undecidable manual P 147 0.0603 141 0.01 100
IX.STN3.HNZ.02 2019-07-21T11:21:44.64 0.1 undecidable manual P 42 0.1133 124 -0.56 87
IX.TEGI.HNZ. 2019-07-21T11:21:44.71 0.1 undecidable manual P 190 0.0665 139 0.29 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IX.STN3.HHE.02 ML:3.4 0.0266 0.96 AML other m 2019-07-21T11:21:47.82
IX.STN3.HHN.02 ML:3.2 0.01685 1.64 AML other m 2019-07-21T11:21:47.88
IV.SLCN.HHE. ML:1.8 0.000937 1.7 AML other m 2019-07-21T11:21:49.04
IV.SLCN.HHN. ML:1.6 0.000669 0.34 AML other m 2019-07-21T11:21:49.91
IV.CMPR.HHE. ML:1 5.25E-5 1.4 AML other m 2019-07-21T11:21:54.82
IV.CMPR.HHN. ML:0.9 4.33E-5 0.3 AML other m 2019-07-21T11:21:54.34
IV.MCEL.HHN. ML:1.2 0.00010465 1.28 AML other m 2019-07-21T11:21:56.35
IV.MCEL.HHE. ML:1.1 6.93E-5 0.38 AML other m 2019-07-21T11:21:57.63
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