Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 30-04-2023 and time 03:28:47 (Italy) in region 3 km SW San Marco la Catola (FG)

A magnitude ML 1.2 earthquake occured in region: 3 km SW San Marco la Catola (FG), on

  • 30-04-2023 01:28:47 (UTC)
  • 30-04-2023 03:28:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.5060, 14.9950 at 26 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
San Marco la Catola FG 3 1012 1012
Tufara CB 5 925 1937
Volturara Appula FG 5 430 2367
Celenza Valfortore FG 7 1598 3965
Gambatesa CB 7 1464 5429
Castelvetere in Val Fortore BN 8 1240 6669
Carlantino FG 10 980 7649
Motta Montecorvino FG 10 730 8379
San Bartolomeo in Galdo BN 11 4867 13246
Volturino FG 11 1743 14989
Baselice BN 12 2397 17386
Macchia Valfortore CB 12 576 17962
Pietramontecorvino FG 12 2721 20683
Pietracatella CB 13 1375 22058
Riccia CB 13 5262 27320
Castelnuovo della Daunia FG 14 1445 28765
Alberona FG 14 985 29750
Casalvecchio di Puglia FG 14 1877 31627
Casalnuovo Monterotaro FG 16 1556 33183
Sant'Elia a Pianisi CB 16 1818 35001
Jelsi CB 17 1781 36782
Foiano di Val Fortore BN 17 1410 38192
Roseto Valfortore FG 17 1074 39266
Colletorto CB 18 1938 41204
Castelpagano BN 19 1483 42687
Monacilioni CB 19 523 43210
Montefalcone di Val Fortore BN 20 1525 44735

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km SW of San Severo (53905 inhabitants)
45 Km NE of Benevento (60091 inhabitants)
46 Km W of Foggia (151991 inhabitants)
68 Km N of Avellino (54857 inhabitants)
73 Km NE of Caserta (76326 inhabitants)
78 Km W of Manfredonia (57279 inhabitants)
80 Km W of Cerignola (58396 inhabitants)
81 Km NE of Acerra (59573 inhabitants)
86 Km NE of Afragola (65057 inhabitants)
89 Km NE of Aversa (53047 inhabitants)
89 Km NE of Casoria (77642 inhabitants)
92 Km NE of Giugliano in Campania (122974 inhabitants)
93 Km N of Cava de' Tirreni (53659 inhabitants)
93 Km NE of Portici (55274 inhabitants)
93 Km NE of Scafati (50787 inhabitants)
94 Km N of Salerno (135261 inhabitants)
94 Km NE of Ercolano (53709 inhabitants)
95 Km NE of Marano di Napoli (59874 inhabitants)
96 Km NE of Torre del Greco (86275 inhabitants)
97 Km NE of Napoli (974074 inhabitants)
100 Km N of Battipaglia (50786 inhabitants)
100 Km NE of Castellammare di Stabia (66466 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
Bulletin
Rev1000 		ML 1.2 2023-04-30
01:28:47		 41.5055 14.9947 26 2024-03-01
17:18:20		 Bollettino Sismico Italiano INGV 124847971
Reviewed
Rev100 		ML 1.1 2023-04-30
01:28:47		 41.5103 14.9707 18 2023-04-30
01:45:04		 Sala Sismica INGV-Roma 116887541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-30 01:28:47 ± 0.13
Latitude 41.5055 ± 0.0054
Longitude 14.9947 ± 0.0072
Depth (km) 26 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 124847971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 524
Semi-minor axis of confidence ellipse (meter) 507
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 321
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) 58
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
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) 0.06385
Epicentral distance of station farthest from the epicenter (degree) 0.48743
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 124847971
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-25 11:25:33

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 116887541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-30 01:45:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.APRC.HHN. 2023-04-30T01:29:04.59 0.6 undecidable manual S 58 53.4021 110 -0.05 46
OT.OT16.EHN. 2023-04-30T01:29:01.16 0.6 undecidable manual S 22 39.2274 118 -0.04 48
IV.PTRJ.HHZ. 2023-04-30T01:29:01.51 0.6 undecidable manual S 248 41.8248 116 -0.28 45
IV.PSB1.HNE. 2023-04-30T01:29:00.31 0.6 undecidable manual S 206 34.8429 121 0.15 47
IV.BSSO.HHZ. 2023-04-30T01:29:00.21 0.6 undecidable manual S 278 33.5442 122 0.33 45
OT.OT11.EHE. 2023-04-30T01:28:58.75 0.6 undecidable manual S 88 28.3494 128 0.02 48
IV.SACR.HHZ. 2023-04-30T01:28:58.08 0.6 undecidable manual S 244 26.8509 129 -0.34 45
IV.MELA.HHZ. 2023-04-30T01:28:57.99 0.3 undecidable manual S 26 24.753 132 -0.01 74
IV.APRC.HHN. 2023-04-30T01:28:57.54 0.6 undecidable manual P 58 53.4021 110 0.27 44
IV.MOCO.HHZ. 2023-04-30T01:28:57.10 0.6 undecidable manual S 138 20.2686 138 -0.05 49
IV.SGTA.HHZ. 2023-04-30T01:28:57.19 0.3 undecidable manual P 143 51.4152 111 0.21 67
OT.OT05.EHZ. 2023-04-30T01:28:56.84 0.1 undecidable manual P 71 53.2023 110 -0.41 86
IV.MRB1.HHN. 2023-04-30T01:28:56.03 0.6 undecidable manual P 183 42.5241 116 0.3 45
IV.CIGN.HHZ. 2023-04-30T01:28:56.90 0.6 undecidable manual S 336 18.0708 142 0.12 49
OT.OT04.EHE. 2023-04-30T01:28:56.95 0.3 undecidable manual P 64 54.1014 110 -0.42 64
IV.GATE.HHZ. 2023-04-30T01:28:55.29 0.3 undecidable manual S 277 7.0929 163 -0.11 74
OT.OT16.EHN. 2023-04-30T01:28:55.13 0.1 undecidable manual P 22 39.2274 118 -0.15 93
IV.PTRJ.HHZ. 2023-04-30T01:28:55.45 0.3 undecidable manual P 248 41.8248 116 -0.17 69
IV.PSB1.HNE. 2023-04-30T01:28:54.76 0.3 undecidable manual P 206 34.8429 121 0.08 71
IV.BSSO.HHZ. 2023-04-30T01:28:54.80 0.1 undecidable manual P 278 33.5442 122 0.28 92
OT.OT11.EHE. 2023-04-30T01:28:54.07 0.6 undecidable manual P 88 28.3494 128 0.21 47
IV.SACR.HHZ. 2023-04-30T01:28:53.40 0.1 undecidable manual P 244 26.8509 129 -0.28 92
IV.MELA.HHZ. 2023-04-30T01:28:53.45 0.1 undecidable manual P 26 24.753 132 0.01 98
IV.CIGN.HHZ. 2023-04-30T01:28:53.09 0.6 undecidable manual P 336 18.0708 142 0.36 46
IV.MOCO.HHZ. 2023-04-30T01:28:53.19 0.1 undecidable manual P 138 20.2686 138 0.25 94
IV.GATE.HHZ. 2023-04-30T01:28:52.00 0.1 undecidable manual P 277 7.0929 163 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GATE.HNE. ML:1.4 0.00016350000000000002 0.4 AML other m 2023-04-30T01:28:57.92
IV.GATE.HHE. ML:1.4 0.000166 0.4 AML other m 2023-04-30T01:28:57.73
IV.SACR.HHE. ML:0.8 0.0000251 1.56 AML other m 2023-04-30T01:28:58.82
IV.GATE.HHN. ML:1.4 0.000141 1.6 AML other m 2023-04-30T01:28:58.93
IV.GATE.HNN. ML:1.4 0.00014000000000000001 1.6 AML other m 2023-04-30T01:28:58.93
IV.MELA.HHE. ML:1.2 0.000072 0.46 AML other m 2023-04-30T01:28:58.22
IV.MELA.HHN. ML:1.3 0.00008645 0.5 AML other m 2023-04-30T01:28:58.19
IV.SACR.HHN. ML:0.8 0.0000263 0.7 AML other m 2023-04-30T01:28:59.27
IV.PTRJ.HHE. ML:0.6 0.00001185 0.18 AML other m 2023-04-30T01:29:06.04
IV.APRC.HHE. ML:1.2 0.000036750000000000006 1.08 AML other m 2023-04-30T01:29:06.06
IV.PTRJ.HHN. ML:0.6 0.00001116 0.52 AML other m 2023-04-30T01:29:06.59
IV.APRC.HHN. ML:1.2 0.000036 1.4 AML other m 2023-04-30T01:29:06.22
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