Earthquake with magnitude of ML 1.4 on date 22-09-2023 and time 02:52:42 (Italy) in region 3 km E San Gregorio Magno (SA)

A magnitude ML 1.4 earthquake occured in region: 3 km E San Gregorio Magno (SA), on

  • 22-09-2023 00:52:42 (UTC)
  • 22-09-2023 02:52:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.6620, 15.4310 at 21 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.

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 Gregorio Magno SA 3 4286 4286
Romagnano al Monte SA 4 368 4654
Ricigliano SA 5 1144 5798
Buccino SA 6 5047 10845
Balvano PZ 7 1830 12675
Salvitelle SA 8 560 13235
Vietri di Potenza PZ 9 2832 16067
Muro Lucano PZ 11 5497 21564
Auletta SA 11 2336 23900
Palomonte SA 12 3985 27885
Caggiano SA 12 2765 30650
Pertosa SA 13 690 31340
Colliano SA 14 3638 34978
Castelgrande PZ 14 943 35921
Baragiano PZ 14 2671 38592
Bella PZ 14 5171 43763
Savoia di Lucania PZ 14 1127 44890
Petina SA 15 1159 46049
Sicignano degli Alburni SA 15 3519 49568
Contursi Terme SA 16 3394 52962
Valva SA 16 1643 54605
Oliveto Citra SA 17 3802 58407
Sant'Angelo Le Fratte PZ 17 1429 59836
Polla SA 17 5279 65115
Laviano SA 17 1438 66553
Picerno PZ 18 5985 72538
Santomenna SA 19 443 72981
Pescopagano PZ 20 1910 74891
Castelnuovo di Conza SA 20 619 75510
San Fele PZ 20 3004 78514

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km W of Potenza (67122 inhabitants)
38 Km E of Battipaglia (50786 inhabitants)
57 Km E of Salerno (135261 inhabitants)
60 Km E of Avellino (54857 inhabitants)
61 Km E of Cava de' Tirreni (53659 inhabitants)
75 Km SE of Benevento (60091 inhabitants)
77 Km E of Scafati (50787 inhabitants)
78 Km SW of Cerignola (58396 inhabitants)
80 Km E of Castellammare di Stabia (66466 inhabitants)
90 Km S of Foggia (151991 inhabitants)
91 Km E of Torre del Greco (86275 inhabitants)
92 Km E of Portici (55274 inhabitants)
93 Km E of Ercolano (53709 inhabitants)
95 Km E of Acerra (59573 inhabitants)
96 Km SW of Andria (100440 inhabitants)
96 Km W of Altamura (70396 inhabitants)
99 Km W of Matera (60436 inhabitants)
99 Km E of Afragola (65057 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 1.4 2023-09-22
00:52:42
40.6618 15.4307 21 2023-09-22
01:00:52
Sala Sismica INGV-Roma 121333341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-22 00:52:42 ± 0.08
Latitude 40.6618 ± 0.0027
Longitude 15.4307 ± 0.0036
Depth (km) 21 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121333341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 348
Semi-minor axis of confidence ellipse (meter) 151
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 281
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 67
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.07015
Epicentral distance of station farthest from the epicenter (degree) 0.35703
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.4
Num. used stations 19
Type of magnitude ML
Reference to an origin 121333341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-22 01:00:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IX.SRN3.HHZ.02 2023-09-22T00:52:51.58 0.3 undecidable manual S 173 19.6692 130 0.09 73
IX.CGG3.HNE.01 2023-09-22T00:52:50.83 0.3 undecidable manual S 150 15.3735 138 0.16 73
IV.CMPR.HHN. 2023-09-22T00:52:50.35 0.3 undecidable manual P 196 39.627 109 -0.16 70
IV.SGO.HHZ. 2023-09-22T00:52:50.61 0.3 undecidable manual S 223 15.2736 138 -0.04 74
IX.COL3.HHZ.02 2023-09-22T00:52:49.63 0.3 undecidable manual S 288 8.88 153 -0.05 74
IV.SNAL.HHZ. 2023-09-22T00:52:49.82 0.3 undecidable manual P 328 34.6431 112 0.02 72
IV.MRLC.HHZ. 2023-09-22T00:52:49.91 0.3 undecidable manual S 25 11.5773 146 -0.13 73
IV.SLCN.HHZ. 2023-09-22T00:52:49.95 0.6 undecidable manual P 150 34.6431 112 0.16 46
IX.SCL3.EHZ.02 2023-09-22T00:52:49.64 0.1 undecidable manual S 61 7.7811 156 0.09 100
IV.MCRV.HHE. 2023-09-22T00:52:48.83 0.3 undecidable manual P 301 25.752 121 0.26 70
IX.STN3.EHZ.02 2023-09-22T00:52:48.19 0.3 undecidable manual P 128 23.6541 123 -0.1 73
IV.SGO.HHZ. 2023-09-22T00:52:47.38 0.1 negative manual P 223 15.2736 138 0.07 98
IX.SRN3.HHZ.02 2023-09-22T00:52:47.64 0.3 undecidable manual P 173 19.6692 130 -0.15 72
IX.CGG3.HNE.01 2023-09-22T00:52:47.33 0.1 undecidable manual P 150 15.3735 138 0.01 99
IV.CDRU.HHZ. 2023-09-22T00:52:47.94 0.3 undecidable manual P 209 21.867 126 -0.12 72
IX.SCL3.EHZ.02 2023-09-22T00:52:46.62 0.1 undecidable manual P 61 7.7811 156 -0.05 100
IX.COL3.HHZ.02 2023-09-22T00:52:46.70 0.3 undecidable manual P 288 8.88 153 -0.05 75
IV.MRLC.HHZ. 2023-09-22T00:52:46.92 0.1 positive manual P 25 11.5773 146 -0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IX.COL3.HHE.02 ML:1.6 0.00031255125000000003 0.176 AML other m 2023-09-22T00:52:50.07
IX.COL3.HHN.02 ML:1.3 0.00014910895 0.128 AML other m 2023-09-22T00:52:50.38
IV.MRLC.HHN. ML:0.8 0.000038678325 0.12 AML other m 2023-09-22T00:52:50.74
IV.MRLC.HHE. ML:0.8 0.00004 0.38 AML other m 2023-09-22T00:52:50.55
IV.SGO.HHE. ML:1.6 0.000262 0.32 AML other m 2023-09-22T00:52:51.16
IV.SGO.HHN. ML:1.7 0.000289 0.12 AML other m 2023-09-22T00:52:51.41
IX.SRN3.HHN.02 ML:1.4 0.0001362217 0.16 AML other m 2023-09-22T00:52:52.13
IX.SRN3.HHE.02 ML:1.4 0.0001435 0.14 AML other m 2023-09-22T00:52:52.58
IX.STN3.EHN.02 ML:2.8 0.0032199999999999998 1.84 AML other m 2023-09-22T00:52:54.05
IX.STN3.EHE.02 ML:2.9 0.003577992 0.096 AML other m 2023-09-22T00:52:49.15
IX.SCL3.EHE.02 ML:1.3 0.000144569485 0.08 AML other m 2023-09-22T00:52:51.24
IX.SCL3.EHN.02 ML:1.4 0.00017778005 0.128 AML other m 2023-09-22T00:52:49.70
IX.SCL3.HNE.01 ML:1.3 0.000137877625 0.08 AML other m 2023-09-22T00:52:51.24
IX.SCL3.HNN.01 ML:1.4 0.00019378285 0.128 AML other m 2023-09-22T00:52:49.70
IX.COL3.HNE.01 ML:1.6 0.00030568720000000003 0.192 AML other m 2023-09-22T00:52:50.06
IX.COL3.HNN.01 ML:1.2 0.00011915002999999998 0.128 AML other m 2023-09-22T00:52:50.07
IV.MRLC.HNE. ML:0.9 0.000049120990000000006 0.18 AML other m 2023-09-22T00:52:51.19
IV.SLCN.HHE. ML:1.0 0.00003811774 0.34 AML other m 2023-09-22T00:53:00.28
IV.SLCN.HHN. ML:0.8 0.00002413464 0.36 AML other m 2023-09-22T00:52:57.58
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download