Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 27-07-2023 and time 17:41:49 (Italy) in region 1 km W Moliterno (PZ)

A magnitude ML 0.9 earthquake occured in region: 1 km W Moliterno (PZ), on

  • 27-07-2023 15:41:49 (UTC)
  • 27-07-2023 17:41:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.2450, 15.8600 at 4 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
Moliterno PZ 1 4062 4062
Sarconi PZ 3 1404 5466
Grumento Nova PZ 5 1700 7166
Spinoso PZ 9 1462 8628
Tramutola PZ 11 3089 11717
Viggiano PZ 11 3329 15046
Montemurro PZ 13 1235 16281
Montesano sulla Marcellana SA 14 6704 22985
Castelsaraceno PZ 14 1384 24369
Marsicovetere PZ 15 5546 29915
Casalbuono SA 15 1194 31109
Lagonegro PZ 16 5584 36693
San Martino d'Agri PZ 16 801 37494
Paterno PZ 18 3368 40862
Armento PZ 19 631 41493
San Chirico Raparo PZ 19 1084 42577

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km S of Potenza (67122 inhabitants)
78 Km SW of Matera (60436 inhabitants)
84 Km SE of Battipaglia (50786 inhabitants)
87 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 0.9 2023-07-27
15:41:49		 40.2453 15.8598 4 2023-07-27
15:59:17		 Sala Sismica INGV-Roma 119630671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-07-27 15:41:49 ± 0.1
Latitude 40.2453 ± 0.0027
Longitude 15.8598 ± 0.0035
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 119630671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 410
Semi-minor axis of confidence ellipse (meter) 36
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 48
Circular confidence region, given by single value of horizontal uncertainty (meter) 410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.06385
Epicentral distance of station farthest from the epicenter (degree) 0.52341
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 119630671
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-07-27 15:59:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SALB.HHZ. 2023-07-27T15:42:00.75 1.0 undecidable manual P 135 58.0974 50 -0.06 24
IV.MGR.HNZ. 2023-07-27T15:41:59.46 0.6 undecidable manual S 245 28.5492 98 -0.05 51
MN.CUC.HNZ. 2023-07-27T15:41:59.59 0.6 undecidable manual S 188 28.1496 98 0.22 49
IV.SLCN.HHZ. 2023-07-27T15:41:58.20 0.3 undecidable manual S 310 25.0527 99 -0.1 76
IV.SCHR.EHZ. 2023-07-27T15:41:56.14 0.3 undecidable manual S 106 18.9699 101 -0.1 77
IV.MGR.HNZ. 2023-07-27T15:41:55.00 0.3 undecidable manual P 245 28.5492 98 -0.29 73
IV.SLCN.HHZ. 2023-07-27T15:41:55.04 1.0 undecidable manual P 310 25.0527 99 0.46 24
MN.CUC.HNZ. 2023-07-27T15:41:55.24 0.3 undecidable manual P 188 28.1496 98 0.03 77
IV.SCHR.EHZ. 2023-07-27T15:41:53.38 1.0 undecidable manual P 106 18.9699 101 -0.02 26
IV.MTSN.HHZ. 2023-07-27T15:41:53.13 0.3 undecidable manual S 284 9.4794 112 0.08 78
IV.MCEL.HHZ. 2023-07-27T15:41:53.28 0.3 undecidable manual S 331 10.0788 111 0.03 79
IV.SIRI.HHZ. 2023-07-27T15:41:52.03 0.3 undecidable manual S 175 7.0929 118 -0.26 76
IV.MCEL.HHZ. 2023-07-27T15:41:51.67 0.6 undecidable manual P 331 10.0788 111 0 53
IV.SIRI.HHZ. 2023-07-27T15:41:51.43 0.1 positive manual P 175 7.0929 118 0.31 100
IV.MTSN.HHZ. 2023-07-27T15:41:51.50 0.6 negative manual P 284 9.4794 112 -0.05 53
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MCEL.HHN. ML:0.7 0.00008745 0.52 AML other m 2023-07-27T15:41:53.28
IV.MTSN.HHE. ML:0.8 0.000113 0.96 AML other m 2023-07-27T15:41:53.76
IV.MTSN.HHN. ML:0.8 0.000122 0.74 AML other m 2023-07-27T15:41:53.89
IV.MCEL.HHE. ML:0.7 0.0000824 1.64 AML other m 2023-07-27T15:41:54.86
IV.MCEL.HNN. ML:1.1 0.00022999999999999998 0.32 AML other m 2023-07-27T15:41:56.05
IV.MCEL.HNE. ML:1.0 0.000186 0.6 AML other m 2023-07-27T15:41:57.54
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