Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 11-09-2023 and time 07:08:39 (Italy) in region 4 km NW Ricigliano (SA)

A magnitude ML 1.6 earthquake occured in region: 4 km NW Ricigliano (SA), on

  • 11-09-2023 05:08:39 (UTC)
  • 11-09-2023 07:08:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.7050, 15.4650 at 3 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
Ricigliano SA 4 1144 1144
Muro Lucano PZ 6 5497 6641
Balvano PZ 7 1830 8471
San Gregorio Magno SA 8 4286 12757
Bella PZ 9 5171 17928
Romagnano al Monte SA 9 368 18296
Castelgrande PZ 9 943 19239
Baragiano PZ 11 2671 21910
Buccino SA 12 5047 26957
Vietri di Potenza PZ 12 2832 29789
Salvitelle SA 13 560 30349
San Fele PZ 14 3004 33353
Colliano SA 15 3638 36991
Caggiano SA 15 2765 39756
Palomonte SA 15 3985 43741
Pescopagano PZ 16 1910 45651
Rapone PZ 16 990 46641
Laviano SA 16 1438 48079
Picerno PZ 16 5985 54064
Auletta SA 17 2336 56400
Savoia di Lucania PZ 17 1127 57527
Santomenna SA 17 443 57970
Valva SA 17 1643 59613
Ruvo del Monte PZ 17 1083 60696
Sant'Andrea di Conza AV 17 1539 62235
Castelnuovo di Conza SA 18 619 62854
Pertosa SA 18 690 63544
Ruoti PZ 18 3579 67123
Oliveto Citra SA 19 3802 70925
Sant'Angelo Le Fratte PZ 19 1429 72354
Contursi Terme SA 20 3394 75748

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km W of Potenza (67122 inhabitants)
42 Km E of Battipaglia (50786 inhabitants)
60 Km E of Salerno (135261 inhabitants)
61 Km E of Avellino (54857 inhabitants)
64 Km E of Cava de' Tirreni (53659 inhabitants)
73 Km SW of Cerignola (58396 inhabitants)
74 Km SE of Benevento (60091 inhabitants)
79 Km E of Scafati (50787 inhabitants)
83 Km E of Castellammare di Stabia (66466 inhabitants)
85 Km S of Foggia (151991 inhabitants)
91 Km SW of Andria (100440 inhabitants)
93 Km W of Altamura (70396 inhabitants)
93 Km E of Torre del Greco (86275 inhabitants)
94 Km E of Portici (55274 inhabitants)
95 Km E of Ercolano (53709 inhabitants)
96 Km W of Matera (60436 inhabitants)
96 Km E of Acerra (59573 inhabitants)
97 Km SW of Barletta (94814 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 1.6 2023-09-11
05:08:39		 40.7048 15.4653 3 2023-09-11
05:15:46		 Sala Sismica INGV-Roma 120964341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-11 05:08:39 ± 0.13
Latitude 40.7048 ± 0.0054
Longitude 15.4653 ± 0.0071
Depth (km) 3 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120964341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 640
Semi-minor axis of confidence ellipse (meter) 177
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 128
Circular confidence region, given by single value of horizontal uncertainty (meter) 640.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 61
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.60524
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 16
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 120964341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-11 05:15:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SIRI.HHZ. 2023-09-11T05:08:51.00 0.6 undecidable manual P 150 67.1772 50 -1 33
IX.SNR3.EHZ.02 2023-09-11T05:08:48.10 0.6 undecidable manual S 279 23.1546 97 0.82 39
IV.ACER.HHZ. 2023-09-11T05:08:47.78 3.0 negative manual P 0.11 0
IV.SLCN.HHZ. 2023-09-11T05:08:47.02 0.6 negative manual P 158 37.629 94 0.28 45
IX.RDM3.HHN. 2023-09-11T05:08:47.12 0.6 undecidable manual S 17 19.869 98 1 36
IV.VULT.HHN. 2023-09-11T05:08:45.40 0.1 undecidable manual P 25 30.4473 95 0.09 95
IV.SNAL.HHZ. 2023-09-11T05:08:45.24 0.1 undecidable manual P 319 32.5452 95 -0.48 88
IX.SRN3.HHZ.02 2023-09-11T05:08:44.33 0.1 undecidable manual P 181 24.2535 97 0.26 93
IV.CDRU.HHZ. 2023-09-11T05:08:44.42 0.1 undecidable manual P 210 27.4503 96 -0.28 92
IX.CLT3.HNE.02 2023-09-11T05:08:44.58 0.6 undecidable manual P 347 22.5552 97 0.85 38
IV.SGO.HHZ. 2023-09-11T05:08:43.32 0.6 undecidable manual P 220 20.868 98 -0.06 49
IX.SNR3.EHZ.02 2023-09-11T05:08:43.93 0.6 negative manual P 279 23.1546 97 0.08 49
IX.COL3.HHZ.02 2023-09-11T05:08:43.55 0.6 undecidable manual S 260 11.4774 104 0.26 48
IX.RDM3.HHN. 2023-09-11T05:08:43.61 0.1 undecidable manual P 17 19.869 98 0.42 91
IX.SFL3.HNE.01 2023-09-11T05:08:43.40 0.6 undecidable manual S 45 13.2756 102 -0.49 45
IX.COL3.HHZ.02 2023-09-11T05:08:41.59 0.1 undecidable manual P 260 11.4774 104 0.04 100
IV.MRLC.HNE. 2023-09-11T05:08:41.33 0.6 undecidable manual S 19 6.0939 115 -0.16 49
IX.SFL3.HNE.01 2023-09-11T05:08:41.91 0.1 undecidable manual P 45 13.2756 102 0.01 100
IX.SCL3.EHZ.02 2023-09-11T05:08:41.01 0.6 undecidable manual S 106 3.996 125 0.13 50
IX.CSG3.HNZ.01 2023-09-11T05:08:41.70 0.1 undecidable manual P 359 12.5763 103 -0.05 99
IX.VDS3.HNE.01 2023-09-11T05:08:40.64 0.6 undecidable manual S 321 5.0949 119 -0.56 45
IV.MRLC.HNE. 2023-09-11T05:08:40.27 0.1 undecidable manual P 19 6.0939 115 -0.24 97
IX.SCL3.EHZ.02 2023-09-11T05:08:40.25 0.1 negative manual P 106 3.996 125 0.09 100
IX.VDS3.HNE.01 2023-09-11T05:08:39.97 0.1 undecidable manual P 321 5.0949 119 -0.38 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IX.COL3.HHE.02 ML:2.1 0.00206 0.16 AML other m 2023-09-11T05:08:44.15
IX.COL3.HNE.01 ML:2.1 0.002125 0.16 AML other m 2023-09-11T05:08:44.15
IX.COL3.HHN.02 ML:1.8 0.001028 0.22 AML other m 2023-09-11T05:08:44.24
IX.COL3.HNN.01 ML:1.7 0.0008075 0.68 AML other m 2023-09-11T05:08:45.61
IV.CDRU.HHE. ML:1.3 0.00011219999999999999 0.28 AML other m 2023-09-11T05:08:49.49
IX.SNR3.EHN.02 ML:1.8 0.0005055000000000001 0.46 AML other m 2023-09-11T05:08:50.25
IV.MCRV.HHN. ML:1.5 0.00020250000000000002 0.62 AML other m 2023-09-11T05:08:50.42
IV.MCRV.HHE. ML:1.4 0.000162 0.68 AML other m 2023-09-11T05:08:51.88
IX.SNR3.EHE.02 ML:1.6 0.000298 0.4 AML other m 2023-09-11T05:08:52.87
IX.SRN3.HHE.02 ML:1.6 0.00023649999999999998 0.5 AML other m 2023-09-11T05:08:53.20
IX.SRN3.HHN.02 ML:1.7 0.0003265 1.4 AML other m 2023-09-11T05:08:53.93
IV.CDRU.HHN. ML:1.0 0.000056550000000000006 0.86 AML other m 2023-09-11T05:08:55.25
IV.SLCN.HHE. ML:1.5 0.00010835 0.8 AML other m 2023-09-11T05:08:56.65
IV.SNAL.HHN. ML:1.3 0.00010165 0.46 AML other m 2023-09-11T05:08:58.57
IV.SNAL.HHE. ML:1.2 0.00007405000000000001 0.66 AML other m 2023-09-11T05:09:01.78
IV.SLCN.HHN. ML:1.4 0.00010005 0.5 AML other m 2023-09-11T05:09:01.79
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