Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.6 on date 25-09-2023 and time 16:34:40 (Italy) in region 4 km N Casaletto Spartano (SA)

A magnitude ML 0.6 earthquake occured in region: 4 km N Casaletto Spartano (SA), on

  • 25-09-2023 14:34:40 (UTC)
  • 25-09-2023 16:34:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.1910, 15.6170 at 7 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
Casaletto Spartano SA 4 1420 1420
Tortorella SA 5 523 1943
Casalbuono SA 6 1194 3137
Caselle in Pittari SA 7 1956 5093
Morigerati SA 8 665 5758
Sanza SA 8 2608 8366
Buonabitacolo SA 9 2549 10915
Torraca SA 9 1263 12178
Vibonati SA 10 3293 15471
Santa Marina SA 11 3243 18714
Montesano sulla Marcellana SA 12 6704 25418
Ispani SA 13 1026 26444
Sapri SA 13 6770 33214
Torre Orsaia SA 14 2118 35332
Lagonegro PZ 15 5584 40916
Alfano SA 16 1023 41939
Rofrano SA 16 1576 43515
Padula SA 17 5368 48883
Sassano SA 17 5013 53896
Rivello PZ 17 2767 56663
Roccagloriosa SA 18 1722 58385
Laurito SA 18 788 59173
Monte San Giacomo SA 18 1572 60745

Municipalities with at least 50000 inhabitants

An earthquake occurred to
53 Km SW of Potenza (67122 inhabitants)
71 Km SE of Battipaglia (50786 inhabitants)
91 Km SE of Salerno (135261 inhabitants)
96 Km SE of Cava de' Tirreni (53659 inhabitants)
99 Km SW of Matera (60436 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 0.6 2023-09-25
14:34:40		 40.1912 15.6172 7 2023-09-25
14:48:11		 Sala Sismica INGV-Roma 121449791
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-25 14:34:40 ± 0.09
Latitude 40.1912 ± 0.0045
Longitude 15.6172 ± 0.0059
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121449791

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 516
Semi-minor axis of confidence ellipse (meter) 355
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 167
Circular confidence region, given by single value of horizontal uncertainty (meter) 520.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 108
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 15
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) 0.41459
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 121449791
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-25 14:48:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.GBOS.HHZ. 2023-09-25T14:35:37.57 3.0 undecidable manual Pg 16.73 0
7C.SPAOL.HNZ. 2023-09-25T14:35:34.48 3.0 undecidable manual Sn -5.35 0
SI.BOSI.HHZ. 2023-09-25T14:35:19.20 3.0 positive manual Pn -1.23 0
IV.SELL.HHZ. 2023-09-25T14:35:18.95 3.0 undecidable manual Sn 1.89 0
IV.FRON.EHZ. 2023-09-25T14:35:14.25 3.0 undecidable manual Sg 2.74 0
IV.CROCE.HNZ. 2023-09-25T14:35:13.91 3.0 undecidable manual Pg 10.73 0
IV.ACATE.HNZ. 2023-09-25T14:34:59.57 3.0 positive manual Pn -0.99 0
IV.MFNL.HHZ. 2023-09-25T14:34:57.58 3.0 negative manual Pg 4.72 0
IV.GUMA.HHZ. 2023-09-25T14:34:54.50 3.0 undecidable manual Sn -2.04 0
IV.SCHR.EHN. 2023-09-25T14:34:53.86 0.6 undecidable manual S 89 38.9277 100 -0.01 47
IV.CMPR.HHZ. 2023-09-25T14:34:50.50 0.6 undecidable manual S 298 30.0477 103 -0.38 45
IV.MMN.HHE. 2023-09-25T14:34:49.25 0.1 undecidable manual P 136 46.0206 50 0.08 91
MN.CUC.HHN. 2023-09-25T14:34:49.61 0.6 undecidable manual S 142 27.6501 104 -0.43 44
IV.SCHR.EHN. 2023-09-25T14:34:48.52 0.6 undecidable manual P 89 38.9277 100 0.45 42
IV.PARC.HHZ. 2023-09-25T14:34:47.67 3.0 positive manual Pg 5.68 0
IV.SIRI.HHZ. 2023-09-25T14:34:47.77 1.0 undecidable manual S 93 21.2676 108 -0.15 24
IV.MCEL.HHZ. 2023-09-25T14:34:47.92 0.6 undecidable manual S 46 21.5673 108 -0.1 48
IV.MTSN.HHZ. 2023-09-25T14:34:46.04 1.0 undecidable manual S 54 14.0748 117 0.41 23
IV.CMPR.HHZ. 2023-09-25T14:34:46.00 1.0 undecidable manual P 298 30.0477 103 -0.34 23
MN.CUC.HHN. 2023-09-25T14:34:45.56 1.0 undecidable manual P 142 27.6501 104 -0.3 23
IV.SIRI.HHZ. 2023-09-25T14:34:44.45 0.1 undecidable manual P 93 21.2676 108 -0.19 94
IV.MGR.HHZ. 2023-09-25T14:34:44.09 0.1 undecidable manual S 222 7.9809 131 0.23 97
IV.MCEL.HHZ. 2023-09-25T14:34:44.70 0.1 undecidable manual P 46 21.5673 108 0 98
IV.MTSN.HHZ. 2023-09-25T14:34:43.56 0.3 undecidable manual P 54 14.0748 117 0.25 71
IV.MGR.HHZ. 2023-09-25T14:34:42.32 0.1 undecidable manual P 222 7.9809 131 0.03 100
IV.PIPA.HHZ. 2023-09-25T14:34:41.15 3.0 undecidable manual Pg 4.27 0
IV.ATVO.HHZ. 2023-09-25T14:34:40.84 3.0 negative manual Pn 2.78 0
IV.ATPI.EHZ. 2023-09-25T14:34:39.95 3.0 undecidable manual Pn 1.11 0
IX.SCL3.EHZ.02 2023-09-25T14:34:29.52 3.0 undecidable manual Sg -0.98 0
IV.MRLC.HHZ. 2023-09-25T14:34:11.93 3.0 positive manual P -1.93 0
IV.CSFT.HHZ. 2023-09-25T14:34:06.17 3.0 positive manual P -0.03 0
IV.CPOZ.HNZ. 2023-09-25T14:34:06.14 3.0 positive manual P -0.4 0
IV.CFMN.HNZ. 2023-09-25T14:34:06.36 3.0 positive manual P -0.22 0
IV.PAOL.HHZ. 2023-09-25T14:34:02.65 3.0 undecidable manual P 2.38 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MGR.HHE. ML:0.4 0.00004765 0.82 AML other m 2023-09-25T14:34:44.31
IV.MGR.HHN. ML:0.5 0.000056999999999999996 0.18 AML other m 2023-09-25T14:34:44.80
IV.MTSN.HHN. ML:0.6 0.0000452 1.42 AML other m 2023-09-25T14:34:47.76
IV.MTSN.HHE. ML:0.5 0.0000366 1.12 AML other m 2023-09-25T14:34:47.33
IV.SIRI.HHE. ML:0.5 0.00002579242 0.2432 AML other m 2023-09-25T14:34:49.04
IV.SIRI.HHN. ML:0.5 0.00002617654 0.5632 AML other m 2023-09-25T14:34:49.50
IV.MCEL.HHE. ML:0.7 0.00003481808 0.2368 AML other m 2023-09-25T14:34:48.88
IV.MCEL.HHN. ML:0.8 0.00005079854 2.5408 AML other m 2023-09-25T14:34:49.03
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