Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 28-07-2023 and time 12:58:30 (Italy) in region 6 km NW Castelsaraceno (PZ)

A magnitude ML 1.0 earthquake occured in region: 6 km NW Castelsaraceno (PZ), on

  • 28-07-2023 10:58:30 (UTC)
  • 28-07-2023 12:58:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.2120, 15.9690 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.

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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
Castelsaraceno PZ 6 1384 1384
Spinoso PZ 6 1462 2846
San Martino d'Agri PZ 8 801 3647
Sarconi PZ 8 1404 5051
Moliterno PZ 9 4062 9113
San Chirico Raparo PZ 10 1084 10197
Montemurro PZ 10 1235 11432
Grumento Nova PZ 10 1700 13132
Carbone PZ 13 638 13770
Armento PZ 13 631 14401
Latronico PZ 14 4556 18957
Viggiano PZ 15 3329 22286
Calvera PZ 17 387 22673
Gallicchio PZ 17 862 23535
Teana PZ 18 613 24148
Missanello PZ 19 566 24714
Castronuovo di Sant'Andrea PZ 19 1067 25781
Episcopia PZ 19 1434 27215
Tramutola PZ 20 3089 30304

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km S of Potenza (67122 inhabitants)
74 Km SW of Matera (60436 inhabitants)
85 Km SW of Altamura (70396 inhabitants)
94 Km E of Battipaglia (50786 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 1.0 2023-07-28
10:58:30		 40.2123 15.9688 9 2023-07-28
11:03:44		 Sala Sismica INGV-Roma 119651241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-07-28 10:58:30 ± 0.12
Latitude 40.2123 ± 0.0072
Longitude 15.9688 ± 0.0082
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 119651241

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 696
Semi-minor axis of confidence ellipse (meter) 591
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 214
Circular confidence region, given by single value of horizontal uncertainty (meter) 700.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.08274
Epicentral distance of station farthest from the epicenter (degree) 0.31656
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 119651241
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-07-28 11:03:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SLCN.HHZ. 2023-07-28T10:58:43.60 0.6 undecidable manual S 305 34.6431 50 0.48 45
MN.CUC.HHZ. 2023-07-28T10:58:41.25 1.0 undecidable manual S 208 27.5502 107 0.39 23
XE.T0701.HHZ. 2023-07-28T10:58:41.69 0.6 undecidable manual S 153 28.0497 107 0.66 43
IV.MTSN.HHZ. 2023-07-28T10:58:38.22 0.6 undecidable manual S 288 19.3695 114 0.01 51
IV.MCEL.HHZ. 2023-07-28T10:58:38.55 0.3 undecidable manual S 311 18.87 114 0.5 69
IV.PTRP.HHE. 2023-07-28T10:58:38.02 0.1 undecidable manual P 13 35.1426 50 -0.01 100
IV.SLCN.HHZ. 2023-07-28T10:58:37.68 1.0 negative manual P 305 34.6431 50 -0.26 24
XE.LAICA.HNZ. 2023-07-28T10:58:37.37 0.3 undecidable manual P 179 29.2485 106 0.4 70
MN.CUC.HHZ. 2023-07-28T10:58:36.36 0.1 undecidable manual P 208 27.5502 107 -0.28 96
XE.T0701.HHZ. 2023-07-28T10:58:36.38 0.1 undecidable manual P 153 28.0497 107 -0.35 94
IV.SIRI.HHZ. 2023-07-28T10:58:35.44 0.6 undecidable manual S 249 9.1797 133 0.22 50
IV.SCHR.EHZ. 2023-07-28T10:58:35.41 0.6 undecidable manual S 99 9.1797 133 0.2 50
IV.MTSN.HHZ. 2023-07-28T10:58:34.53 0.6 positive manual P 288 19.3695 114 -0.57 45
IV.MCEL.HHZ. 2023-07-28T10:58:34.73 0.3 positive manual P 311 18.87 114 -0.28 73
IV.SIRI.HHZ. 2023-07-28T10:58:33.12 0.1 positive manual P 249 9.1797 133 -0.26 99
IV.SCHR.EHZ. 2023-07-28T10:58:33.29 0.6 positive manual P 99 9.1797 133 -0.09 51
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SIRI.HHN. ML:1.4 0.00035999999999999997 0.16 AML other m 2023-07-28T10:58:35.57
IV.SIRI.HNN. ML:1.5 0.000468 0.8 AML other m 2023-07-28T10:58:35.57
IV.SCHR.EHN. ML:0.8 0.00010135 0.28 AML other m 2023-07-28T10:58:36.45
IV.SIRI.HNE. ML:1.3 0.0002945 0.2 AML other m 2023-07-28T10:58:36.59
IV.SIRI.HHE. ML:1.3 0.000304 0.2 AML other m 2023-07-28T10:58:36.59
IV.SCHR.EHE. ML:0.7 0.0000791 1.3 AML other m 2023-07-28T10:58:36.97
IV.MCEL.HHN. ML:0.8 0.0000532 0.18 AML other m 2023-07-28T10:58:39.07
IV.MTSN.HHN. ML:1.0 0.000075 0.28 AML other m 2023-07-28T10:58:39.61
IV.MTSN.HHE. ML:0.9 0.00006405 0.78 AML other m 2023-07-28T10:58:39.54
IV.MCEL.HHE. ML:0.6 0.000034149999999999997 0.28 AML other m 2023-07-28T10:58:43.78
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