Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 20-02-2024 and time 21:10:30 (UTC) in region 4 km W San Chirico Raparo (PZ)

A magnitude ML 1.7 earthquake occured in region: 4 km W San Chirico Raparo (PZ), on

  • 20-02-2024 21:10:30 (UTC)
  • 20-02-2024 22:10:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.2060, 16.0390 at 9 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.

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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 Chirico Raparo PZ 4 1084 1084
San Martino d'Agri PZ 4 801 1885
Castelsaraceno PZ 6 1384 3269
Carbone PZ 8 638 3907
Spinoso PZ 9 1462 5369
Calvera PZ 11 387 5756
Montemurro PZ 11 1235 6991
Armento PZ 11 631 7622
Castronuovo di Sant'Andrea PZ 13 1067 8689
Gallicchio PZ 13 862 9551
Teana PZ 13 613 10164
Latronico PZ 13 4556 14720
Sarconi PZ 14 1404 16124
Missanello PZ 14 566 16690
Roccanova PZ 14 1543 18233
Fardella PZ 15 627 18860
Moliterno PZ 15 4062 22922
Episcopia PZ 15 1434 24356
Grumento Nova PZ 15 1700 26056
Chiaromonte PZ 18 1965 28021
Guardia Perticara PZ 18 552 28573
Viggiano PZ 19 3329 31902
Francavilla in Sinni PZ 20 4215 36117
Corleto Perticara PZ 20 2511 38628

Municipalities with at least 50000 inhabitants

An earthquake occurred to
52 Km SE of Potenza (67122 inhabitants)
70 Km SW of Matera (60436 inhabitants)
82 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
Reviewed
Rev100 		ML 1.7 2024-02-20
21:10:30		 40.2057 16.039 9 2024-02-20
21:18:46		 Sala Sismica INGV-Roma 125409741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-02-20 21:10:30 ± 0.06
Latitude 40.2057 ± 0.0036
Longitude 16.0390 ± 0.0059
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 125409741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 489
Semi-minor axis of confidence ellipse (meter) 315
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 235
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 18
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.58546
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 125409741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-02-20 21:18:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.POFI.HHZ. 2024-02-20T21:11:34.97 3.0 undecidable manual Sn -3.83 0
IV.HPAC.HHZ. 2024-02-20T21:11:32.31 3.0 undecidable manual Pg 8.8 0
IV.MIDA.HHZ. 2024-02-20T21:11:30.98 3.0 undecidable manual Sn 0.58 0
IV.MPNC.HHZ. 2024-02-20T21:11:28.33 3.0 undecidable manual Sn -1.84 0
IV.NOCI.HHZ. 2024-02-20T21:10:49.30 3.0 undecidable manual P 0
IV.MRVN.HHZ. 2024-02-20T21:10:46.04 3.0 undecidable manual P 0
IV.ACER.HHZ. 2024-02-20T21:10:42.08 0.3 undecidable manual P 353 64.9905 50 0.09 66
IV.MIGL.HHZ. 2024-02-20T21:10:39.97 0.3 undecidable manual P 37 55.7997 50 -0.61 59
XE.T0701.HHZ. 2024-02-20T21:10:39.64 0.3 undecidable manual S 165 25.2525 110 -0.04 72
IV.MTSN.HHZ. 2024-02-20T21:10:39.70 0.6 undecidable manual S 286 25.2525 110 0.01 48
IV.CRAC.EHZ. 2024-02-20T21:10:38.27 0.3 undecidable manual P 60 38.7279 50 0.32 66
IV.MMN.HHZ. 2024-02-20T21:10:37.85 0.3 undecidable manual P 187 35.1426 50 0.45 65
IX.VGG3.HNZ.01 2024-02-20T21:10:37.52 0.6 undecidable manual S 321 18.5703 117 -0.04 48
XE.MORMA.HNZ. 2024-02-20T21:10:37.86 0.3 undecidable manual P 189 37.629 50 0.07 70
IV.PTRP.HHZ. 2024-02-20T21:10:37.51 0.1 undecidable manual P 3 35.0427 50 0.12 93
XE.TNOVA.HNZ. 2024-02-20T21:10:36.62 0.1 undecidable manual P 144 31.8459 50 -0.27 90
XE.LAICA.HNZ. 2024-02-20T21:10:36.43 0.3 undecidable manual P 191 29.0487 50 -0.03 72
IV.SIRI.HHZ. 2024-02-20T21:10:36.46 0.3 undecidable manual S 260 14.7741 122 0.05 73
IV.MTSN.HHZ. 2024-02-20T21:10:35.63 0.1 positive manual P 286 25.2525 110 -0.11 95
XE.T0701.HHZ. 2024-02-20T21:10:35.62 0.1 undecidable manual P 165 25.2525 110 -0.12 94
IX.VGG3.HNZ.01 2024-02-20T21:10:34.57 0.6 undecidable manual P 321 18.5703 117 0.06 48
IV.SIRI.HHZ. 2024-02-20T21:10:33.70 0.1 positive manual P 260 14.7741 122 -0.14 96
IV.SCHR.EHZ. 2024-02-20T21:10:33.80 0.1 undecidable manual S 103 3.1968 161 0.02 100
IV.SCHR.EHZ. 2024-02-20T21:10:32.51 0.1 undecidable manual P 103 3.1968 161 0.18 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SCHR.EHN. ML:2.4 0.005185 0.2 AML other m 2024-02-20T21:10:33.88
IV.SCHR.EHE. ML:2.5 0.005974999999999999 0.12 AML other m 2024-02-20T21:10:33.94
IV.SIRI.HHN. ML:1.8 0.0006845 0.24 AML other m 2024-02-20T21:10:37.21
IV.SIRI.HNN. ML:1.8 0.0006615 1.44 AML other m 2024-02-20T21:10:37.22
IV.SIRI.HHE. ML:1.7 0.000528 0.24 AML other m 2024-02-20T21:10:37.85
IV.SIRI.HNE. ML:1.7 0.0005 0.22 AML other m 2024-02-20T21:10:37.86
XE.T0701.HHE. ML:1.5 0.0001715 1.24 AML other m 2024-02-20T21:10:39.14
IV.MTSN.HHE. ML:1.8 0.0003875 1.72 AML other m 2024-02-20T21:10:39.95
IV.MTSN.HNE. ML:1.9 0.000425 1.72 AML other m 2024-02-20T21:10:39.95
IV.MTSN.HHN. ML:1.9 0.000514 0.46 AML other m 2024-02-20T21:10:40.74
IV.MTSN.HNN. ML:1.9 0.000495 0.46 AML other m 2024-02-20T21:10:40.74
XE.T0701.HNE. ML:1.2 0.00009405 1.32 AML other m 2024-02-20T21:10:40.14
XE.T0701.HNN. ML:1.1 0.00006984999999999999 1.48 AML other m 2024-02-20T21:10:41.92
XE.T0701.HHN. ML:1.3 0.00013000000000000002 0.32 AML other m 2024-02-20T21:10:41.92
IV.PTRP.HHE. ML:1.3 0.00007475 0.48 AML other m 2024-02-20T21:10:47.29
IV.CRAC.EHN. ML:1.8 0.00021700000000000002 0.44 AML other m 2024-02-20T21:10:47.63
IV.CRAC.EHE. ML:1.9 0.0002685 0.28 AML other m 2024-02-20T21:10:48.20
IV.PTRP.HHN. ML:1.3 0.00008219999999999999 0.42 AML other m 2024-02-20T21:10:48.41
IV.ACER.HHE. ML:1.9 0.0001625 1.02 AML other m 2024-02-20T21:10:52.91
IV.ACER.HHN. ML:1.8 0.0001175 0.6 AML other m 2024-02-20T21:10:52.51
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