Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 30-08-2021 and time 20:16:14 (Italy) in region 1 km S San Marco la Catola (FG)

A magnitude ML 1.3 earthquake occured in region: 1 km S San Marco la Catola (FG), on

  • 30-08-2021 18:16:14 (UTC)
  • 30-08-2021 20:16:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.5140, 15.0020 at 28 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 1 1012 1012
Volturara Appula FG 5 430 1442
Tufara CB 6 925 2367
Celenza Valfortore FG 6 1598 3965
Gambatesa CB 7 1464 5429
Carlantino FG 9 980 6409
Castelvetere in Val Fortore BN 9 1240 7649
Motta Montecorvino FG 9 730 8379
Volturino FG 11 1743 10122
Pietramontecorvino FG 11 2721 12843
Macchia Valfortore CB 12 576 13419
San Bartolomeo in Galdo BN 12 4867 18286
Castelnuovo della Daunia FG 12 1445 19731
Casalvecchio di Puglia FG 13 1877 21608
Baselice BN 13 2397 24005
Pietracatella CB 13 1375 25380
Alberona FG 14 985 26365
Riccia CB 14 5262 31627
Casalnuovo Monterotaro FG 14 1556 33183
Sant'Elia a Pianisi CB 16 1818 35001
Colletorto CB 17 1938 36939
Jelsi CB 17 1781 38720
Roseto Valfortore FG 18 1074 39794
Foiano di Val Fortore BN 18 1410 41204
Monacilioni CB 19 523 41727
San Giuliano di Puglia CB 19 1042 42769

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km SW of San Severo (53905 inhabitants)
46 Km W of Foggia (151991 inhabitants)
47 Km NE of Benevento (60091 inhabitants)
69 Km N of Avellino (54857 inhabitants)
74 Km NE of Caserta (76326 inhabitants)
77 Km W of Manfredonia (57279 inhabitants)
80 Km W of Cerignola (58396 inhabitants)
82 Km NE of Acerra (59573 inhabitants)
88 Km NE of Afragola (65057 inhabitants)
90 Km NE of Aversa (53047 inhabitants)
90 Km NE of Casoria (77642 inhabitants)
93 Km NE of Giugliano in Campania (122974 inhabitants)
94 Km N of Cava de' Tirreni (53659 inhabitants)
94 Km NE of Portici (55274 inhabitants)
94 Km NE of Scafati (50787 inhabitants)
95 Km N of Salerno (135261 inhabitants)
96 Km NE of Ercolano (53709 inhabitants)
96 Km NE of Marano di Napoli (59874 inhabitants)
97 Km NE of Torre del Greco (86275 inhabitants)
98 Km NE of Napoli (974074 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 1.3 2021-08-30
18:16:14		 41.5145 15.0022 28 2021-12-29
11:12:29		 Bollettino Sismico Italiano INGV 95307081
Reviewed
Rev100 		ML 1.3 2021-08-30
18:16:14		 41.5138 14.9752 26 2021-08-30
18:22:46		 Sala Sismica INGV-Roma 94830001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-30 18:16:14 ± 0.17
Latitude 41.5145 ± 0.0081
Longitude 15.0022 ± 0.0072
Depth (km) 28 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 95307081

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 993
Semi-minor axis of confidence ellipse (meter) 175
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 337
Circular confidence region, given by single value of horizontal uncertainty (meter) 990.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47844
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 95307081
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-12-17 13:53:46

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 94830001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-30 18:22:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IT.FIE.HGZ. 2021-08-30T18:18:04.78 3.0 undecidable manual Sg 17.219999 0
ST.CARE.HNZ. 2021-08-30T18:17:51.94 3.0 undecidable manual P 1.23 0
GU.RNCA.HHZ. 2021-08-30T18:17:46.61 3.0 negative manual P 1.373 0
IV.ARVD.HHZ. 2021-08-30T18:17:31.78 3.0 undecidable manual Sg 10.37 0
IV.RESU.HHZ. 2021-08-30T18:17:09.21 3.0 undecidable manual P -5.02 0
IV.BRSN.EHZ. 2021-08-30T18:17:06.24 3.0 undecidable manual P -1.54 0
IV.LAV9.HHZ. 2021-08-30T18:17:03.18 3.0 undecidable manual Sn 0.21 0
IV.FRON.EHZ. 2021-08-30T18:16:52.80 3.0 undecidable manual P -2.73 0
IV.SRES.HHZ. 2021-08-30T18:16:44.96 3.0 negative manual P -1.94 0
IV.SGTA.HNZ. 2021-08-30T18:16:32.07 0.6 undecidable manual S 144 51.8037 112 0.62 42
OT.OT04.EHE. 2021-08-30T18:16:31.08 0.6 undecidable manual S 64 53.1024 112 -0.68 40
IV.APRC.HHZ. 2021-08-30T18:16:31.31 0.6 undecidable manual S 59 52.3032 112 -0.26 45
OT.OT05.EHZ. 2021-08-30T18:16:30.96 0.6 undecidable manual S 72 52.3032 112 -0.61 41
IV.BSSO.HHZ. 2021-08-30T18:16:27.27 0.3 undecidable manual S 276 34.0437 124 0.03 73
IV.PSB1.HHZ. 2021-08-30T18:16:27.28 0.3 undecidable manual S 206 36.0417 122 -0.39 67
IV.MELA.HHZ. 2021-08-30T18:16:25.15 0.3 undecidable manual S 26 23.6541 135 0.07 73
IV.MOCO.HHZ. 2021-08-30T18:16:25.36 0.6 undecidable manual S 141 20.6682 139 0.82 40
IV.SACR.HHZ. 2021-08-30T18:16:25.36 0.3 undecidable manual S 242 27.8499 130 -0.55 66
IV.APRC.HHZ. 2021-08-30T18:16:24.41 0.3 undecidable manual P 59 52.3032 112 0.15 69
IV.SGTA.HNZ. 2021-08-30T18:16:24.30 0.1 undecidable manual P 144 51.8037 112 0.11 94
OT.OT04.EHE. 2021-08-30T18:16:24.90 0.3 undecidable manual P 64 53.1024 112 0.53 63
OT.OT05.EHZ. 2021-08-30T18:16:24.03 0.3 undecidable manual P 72 52.3032 112 -0.23 68
IV.VITU.HHZ. 2021-08-30T18:16:23.70 0.3 undecidable manual P 220 48.0186 114 0.05 72
IT.PLTA.HNN. 2021-08-30T18:16:23.55 0.3 undecidable manual P 337 44.8218 116 0.34 67
IV.BSSO.HHZ. 2021-08-30T18:16:22.05 0.1 undecidable manual P 276 34.0437 124 0.29 92
IV.GATE.HHZ. 2021-08-30T18:16:22.91 0.6 undecidable manual S 269 7.5813 163 0.07 50
IV.PSB1.HHZ. 2021-08-30T18:16:21.84 0.1 positive manual P 206 36.0417 122 -0.16 94
IV.MELA.HHZ. 2021-08-30T18:16:20.57 0.3 undecidable manual P 26 23.6541 135 0.06 74
IV.MOCO.HHZ. 2021-08-30T18:16:20.24 0.1 undecidable manual P 141 20.6682 139 0.05 100
IV.SACR.HHZ. 2021-08-30T18:16:20.83 0.1 positive manual P 242 27.8499 130 -0.16 96
IV.GATE.HHZ. 2021-08-30T18:16:19.05 0.3 undecidable manual P 269 7.5813 163 -0.17 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GATE.HHE. ML:1.5 0.000162 1.28 AML other m 2021-08-30T18:16:24.69
IV.GATE.HNE. ML:1.5 0.00016299999999999998 1.28 AML other m 2021-08-30T18:16:24.69
IV.GATE.HHN. ML:1.4 0.0001535 1.68 AML other m 2021-08-30T18:16:25.95
IV.GATE.HNN. ML:1.4 0.00015000000000000001 1.66 AML other m 2021-08-30T18:16:25.95
IV.SACR.HHE. ML:1.3 0.00007159999999999999 1.26 AML other m 2021-08-30T18:16:25.81
IV.SACR.HHN. ML:1.2 0.0000531 1.2 AML other m 2021-08-30T18:16:26.79
IV.MOCO.HHN. ML:0.8 0.0000282 0.98 AML other m 2021-08-30T18:16:27.08
IV.MOCO.HHE. ML:1.1 0.00004905 0.94 AML other m 2021-08-30T18:16:32.06
IV.APRC.HHE. ML:1.5 0.00007250000000000001 1.6 AML other m 2021-08-30T18:16:33.17
IV.APRC.HHN. ML:1.4 0.00006195 0.88 AML other m 2021-08-30T18:16:35.31
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