Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 20-09-2021 and time 18:19:10 (Italy) in region 3 km E Scampitella (AV)

A magnitude ML 1.4 earthquake occured in region: 3 km E Scampitella (AV), on

  • 20-09-2021 16:19:10 (UTC)
  • 20-09-2021 18:19:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.0880, 15.3320 at 16 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
Scampitella AV 3 1234 1234
Anzano di Puglia FG 5 1284 2518
Vallesaccarda AV 7 1386 3904
Accadia FG 8 2376 6280
Sant'Agata di Puglia FG 8 1959 8239
Vallata AV 9 2714 10953
Lacedonia AV 9 2340 13293
Bisaccia AV 9 3831 17124
Trevico AV 9 993 18117
Monteleone di Puglia FG 11 1021 19138
San Sossio Baronia AV 11 1643 20781
Rocchetta Sant'Antonio FG 11 1875 22656
San Nicola Baronia AV 12 771 23427
Zungoli AV 12 1099 24526
Carife AV 12 1408 25934
Castel Baronia AV 13 1129 27063
Villanova del Battista AV 15 1690 28753
Flumeri AV 15 2963 31716
Panni FG 16 804 32520
Deliceto FG 16 3828 36348
Candela FG 16 2728 39076
Aquilonia AV 16 1739 40815
Andretta AV 17 1927 42742
Guardia Lombardi AV 18 1718 44460
Bovino FG 18 3309 47769
Montaguto AV 19 423 48192
Monteverde AV 20 784 48976
Morra De Sanctis AV 20 1297 50273
Sturno AV 20 3080 53353

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km SW of Foggia (151991 inhabitants)
46 Km E of Benevento (60091 inhabitants)
49 Km E of Avellino (54857 inhabitants)
52 Km W of Cerignola (58396 inhabitants)
61 Km NE of Battipaglia (50786 inhabitants)
64 Km NW of Potenza (67122 inhabitants)
66 Km NE of Salerno (135261 inhabitants)
67 Km S of San Severo (53905 inhabitants)
68 Km NE of Cava de' Tirreni (53659 inhabitants)
77 Km NE of Scafati (50787 inhabitants)
78 Km SW of Manfredonia (57279 inhabitants)
82 Km E of Acerra (59573 inhabitants)
82 Km W of Andria (100440 inhabitants)
83 Km W of Barletta (94814 inhabitants)
84 Km E of Caserta (76326 inhabitants)
84 Km NE of Castellammare di Stabia (66466 inhabitants)
87 Km E of Portici (55274 inhabitants)
88 Km E of Afragola (65057 inhabitants)
88 Km E of Torre del Greco (86275 inhabitants)
88 Km E of Ercolano (53709 inhabitants)
90 Km E of Casoria (77642 inhabitants)
93 Km W of Trani (56217 inhabitants)
95 Km E of Napoli (974074 inhabitants)
95 Km E of Aversa (53047 inhabitants)
96 Km E of Giugliano in Campania (122974 inhabitants)
98 Km E of Marano di Napoli (59874 inhabitants)
100 Km W of Bisceglie (55422 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 1.4 2021-09-20
16:19:10		 41.0883 15.3318 16 2022-03-30
13:04:38		 Bollettino Sismico Italiano INGV 101116831
Reviewed
Rev100 		ML 1.4 2021-09-20
16:19:09		 41.0948 15.4327 15 2021-09-20
16:25:45		 Sala Sismica INGV-Roma 95669091
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-20 16:19:10 ± 0.29
Latitude 41.0883 ± 0.0171
Longitude 15.3318 ± 0.0310
Depth (km) 16 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 101116831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2935
Semi-minor axis of confidence ellipse (meter) 538
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 300
Circular confidence region, given by single value of horizontal uncertainty (meter) 2930.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 167
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.45
Epicentral distance of station closest to the epicenter (degree) 0.05306
Epicentral distance of station farthest from the epicenter (degree) 0.75903
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 95669091
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-20 16:25:45

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 101116831
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-18 16:59:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MSAG.HHZ. 2021-09-20T16:19:26.29 0.3 undecidable manual P 35 84.249 94 1.1 49
IV.SGRT.HHN. 2021-09-20T16:19:25.04 0.3 undecidable manual P 25 81.4518 94 0.28 66
IV.MCRV.HHZ. 2021-09-20T16:19:23.10 0.6 undecidable manual S 202 36.5412 101 -0.01 49
IV.SNAL.HHZ. 2021-09-20T16:19:19.70 0.6 undecidable manual S 210 20.7681 116 0.61 45
IX.SSB3.HHZ.02 2021-09-20T16:19:17.30 0.6 undecidable manual S 263 8.6802 146 0.71 44
IV.MCRV.HHZ. 2021-09-20T16:19:17.63 0.3 undecidable manual P 202 36.5412 101 -0.26 70
IV.MOCO.HNE. 2021-09-20T16:19:17.20 0.3 undecidable manual P 335 34.4433 102 -0.37 69
IV.SGTA.HHZ. 2021-09-20T16:19:16.60 0.6 undecidable manual S 28 5.8941 156 0.37 49
IV.CAFE.HHZ. 2021-09-20T16:19:16.90 0.6 undecidable manual S 230 10.3785 140 0.02 52
IV.SNAL.HHZ. 2021-09-20T16:19:15.43 0.1 undecidable manual P 210 20.7681 116 -0.14 99
IV.CAFE.HHZ. 2021-09-20T16:19:14.11 0.1 undecidable manual P 230 10.3785 140 -0.18 100
IX.SSB3.HHZ.02 2021-09-20T16:19:14.13 0.3 undecidable manual P 263 8.6802 146 0 78
IV.SGTA.HHZ. 2021-09-20T16:19:13.03 0.1 positive manual P 28 5.8941 156 -0.89 80
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SGTA.HNN. ML:1.4 0.00023999999999999998 0.42 AML other m 2021-09-20T16:19:16.85
IV.SGTA.HHN. ML:1.4 0.000237 0.28 AML other m 2021-09-20T16:19:16.79
IV.SGTA.HNE. ML:1.5 0.000304 1.64 AML other m 2021-09-20T16:19:16.96
IV.SGTA.HHE. ML:1.4 0.00029 0.44 AML other m 2021-09-20T16:19:16.97
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