Earthquake with magnitude of ML 1.3 on date 20-09-2021 and time 00:39:05 (UTC) in region 3 km SE Laviano (SA)

A magnitude ML 1.3 earthquake occured in region: 3 km SE Laviano (SA), on

  • 20-09-2021 00:39:05 (UTC)
  • 20-09-2021 02:39:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.765, 15.318 at 11 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
Laviano SA 3 1438 1438
Colliano SA 5 3638 5076
Valva SA 5 1643 6719
Santomenna SA 5 443 7162
Castelnuovo di Conza SA 6 619 7781
Calabritto AV 9 2391 10172
Caposele AV 10 3483 13655
Senerchia AV 10 842 14497
Sant'Andrea di Conza AV 10 1539 16036
Castelgrande PZ 10 943 16979
Pescopagano PZ 10 1910 18889
Oliveto Citra SA 11 3802 22691
Conza della Campania AV 11 1373 24064
Teora AV 11 1537 25601
Palomonte SA 12 3985 29586
San Gregorio Magno SA 14 4286 33872
Muro Lucano PZ 14 5497 39369
Contursi Terme SA 14 3394 42763
Buccino SA 15 5047 47810
Cairano AV 15 326 48136
Lioni AV 17 6201 54337
Ricigliano SA 18 1144 55481
Rapone PZ 18 990 56471
Romagnano al Monte SA 18 368 56839
Calitri AV 18 4666 61505
Bella PZ 19 5171 66676
Morra De Sanctis AV 19 1297 67973
Andretta AV 19 1927 69900
San Fele PZ 20 3004 72904

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NE of Battipaglia (50786 inhabitants)
43 Km W of Potenza (67122 inhabitants)
47 Km E of Avellino (54857 inhabitants)
48 Km E of Salerno (135261 inhabitants)
52 Km E of Cava de' Tirreni (53659 inhabitants)
61 Km SE of Benevento (60091 inhabitants)
67 Km E of Scafati (50787 inhabitants)
71 Km E of Castellammare di Stabia (66466 inhabitants)
74 Km SW of Cerignola (58396 inhabitants)
80 Km S of Foggia (151991 inhabitants)
80 Km E of Torre del Greco (86275 inhabitants)
81 Km E of Portici (55274 inhabitants)
82 Km E of Ercolano (53709 inhabitants)
82 Km E of Acerra (59573 inhabitants)
87 Km E of Afragola (65057 inhabitants)
88 Km E of Casoria (77642 inhabitants)
90 Km E of Caserta (76326 inhabitants)
90 Km E of Napoli (974074 inhabitants)
96 Km E of Giugliano in Campania (122974 inhabitants)
96 Km E of Marano di Napoli (59874 inhabitants)
96 Km E of Aversa (53047 inhabitants)
97 Km SW of Andria (100440 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.3 2021-09-20
00:39:05
40.7647 15.3183 11 2021-09-20
00:45:55
Sala Sismica INGV-Roma 95644711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-20 00:39:05 ± 0.11
Latitude 40.7647 ± 0.0054
Longitude 15.3183 ± 0.0083
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95644711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 737
Semi-minor axis of confidence ellipse (meter) 113
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 61
Circular confidence region, given by single value of horizontal uncertainty (meter) 740
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.27519
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 95644711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-20 00:45:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PTRJ.HNZ. 2021-09-20T00:39:19.96 3.0 positive manual P 1.83 0
IV.CDRU.HHZ. 2021-09-20T00:39:16.16 0.3 undecidable manual S 182 0.2752 50 0.03 73
IX.MNT3.HNN.02 2021-09-20T00:39:15.52 0.3 undecidable manual S 287 0.2464 50 0.23 74
IV.SGO.HNN. 2021-09-20T00:39:14.48 0.3 undecidable manual S 182 0.2041 50 0.44 71
IV.SNAL.HHZ. 2021-09-20T00:39:13.63 0.6 undecidable manual S 333 0.1808 50 0.3 47
IX.LIO3.HHZ.02 2021-09-20T00:39:12.77 0.6 undecidable manual S 322 0.1682 120 -0.16 50
IX.SNR3.EHZ.02 2021-09-20T00:39:11.63 0.1 undecidable manual S 253 0.0998 134 0.83 79
IX.RDM3.HHE.02 2021-09-20T00:39:11.05 0.6 undecidable manual P 56 0.1988 50 0.75 42
IV.CDRU.HHZ. 2021-09-20T00:39:11.49 0.3 undecidable manual P 182 0.2752 50 -0.13 72
IX.MNT3.HNN.02 2021-09-20T00:39:10.85 0.6 undecidable manual P 287 0.2464 50 -0.28 47
IV.MCRV.HHZ. 2021-09-20T00:39:10.94 0.1 undecidable manual S 279 0.1151 130 -0.3 98
IV.SGO.HNN. 2021-09-20T00:39:10.17 0.6 undecidable manual P 182 0.2041 50 -0.24 47
IX.CLT3.EHN.02 2021-09-20T00:39:09.53 0.6 undecidable manual P 25 0.1529 122 0.06 50
IX.COL3.HHZ.02 2021-09-20T00:39:09.96 0.1 undecidable manual S 173 0.0782 141 -0.28 99
IV.SNAL.HHZ. 2021-09-20T00:39:09.89 0.3 undecidable manual P 333 0.1808 50 -0.11 75
IX.LIO3.HHZ.02 2021-09-20T00:39:09.46 0.6 undecidable manual P 322 0.1682 120 -0.31 48
IV.MRLC.HHZ. 2021-09-20T00:39:09.13 0.1 undecidable manual P 94 0.1295 127 0.09 100
IV.MCRV.HHZ. 2021-09-20T00:39:08.49 0.3 undecidable manual P 279 0.1151 130 -0.3 73
IX.SNR3.EHZ.02 2021-09-20T00:39:08.50 0.3 undecidable manual P 253 0.0998 134 -0.04 77
IX.COL3.HHZ.02 2021-09-20T00:39:08.07 0.3 undecidable manual P 173 0.0782 141 -0.15 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IX.COL3.HHN.02 ML:1.7 0.0006815 0.24 AML other m 2021-09-20T00:39:10.32
IV.MCRV.HHE. ML:1.1 0.000123 0.3 AML other m 2021-09-20T00:39:11.55
IX.COL3.HHE.02 ML:1.8 0.0008025 0.2 AML other m 2021-09-20T00:39:11.85
IX.SNR3.EHE.02 ML:1.5 0.0003605 0.48 AML other m 2021-09-20T00:39:12.25
IV.MRLC.HHE. ML:1 9.26E-5 0.94 AML other m 2021-09-20T00:39:12.67
IV.MCRV.HHN. ML:1.3 0.0002295 0.26 AML other m 2021-09-20T00:39:13.18
IX.SNR3.EHN.02 ML:1.6 0.000415 0.74 AML other m 2021-09-20T00:39:13.95
IV.MRLC.HHN. ML:1.1 0.000125 0.3 AML other m 2021-09-20T00:39:13.74
IV.CDRU.HHN. ML:0.7 2.565E-5 1.04 AML other m 2021-09-20T00:39:17.08
IV.CDRU.HHE. ML:0.6 1.83E-5 0.36 AML other m 2021-09-20T00:39:17.87
IX.SNR3.HNE.01 ML:1.6 0.00041126175 0.56 AML other m 2021-09-20T00:39:12.01
IX.SNR3.HNN.01 ML:1.5 0.0003958501 0.304 AML other m 2021-09-20T00:39:13.95
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