Earthquake with magnitude of ML 1.0 on date 21-09-2020 and time 16:31:05 (UTC) in region 2 km S Scapoli (IS)

A magnitude ML 1.0 earthquake occured in region: 2 km S Scapoli (IS), on

  • 21-09-2020 16:31:05 (UTC)
  • 21-09-2020 18:31:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6, 14.06 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
Scapoli IS 2 680 680
Rocchetta a Volturno IS 4 1113 1793
Colli a Volturno IS 4 1349 3142
Filignano IS 6 648 3790
Montaquila IS 6 2456 6246
Castel San Vincenzo IS 6 516 6762
Fornelli IS 7 1909 8671
Cerro al Volturno IS 7 1281 9952
Pizzone IS 8 329 10281
Pozzilli IS 10 2380 12661
Macchia d'Isernia IS 10 1035 13696
Acquafondata FR 11 263 13959
San Biagio Saracinisco FR 11 349 14308
Viticuso FR 11 353 14661
Acquaviva d'Isernia IS 11 425 15086
Conca Casale IS 12 200 15286
Venafro IS 13 11280 26566
Montenero Val Cocchiara IS 13 538 27104
Monteroduni IS 13 2264 29368
Vallerotonda FR 13 1581 30949
Isernia IS 14 21842 52791
Rionero Sannitico IS 14 1118 53909
Forlì del Sannio IS 15 675 54584
Sant'Agapito IS 15 1496 56080
Alfedena AQ 15 864 56944
Capriati a Volturno CE 16 1541 58485
Scontrone AQ 17 574 59059
Miranda IS 17 1047 60106
Picinisco FR 17 1218 61324
Sant'Elia Fiumerapido FR 17 6166 67490
Longano IS 18 690 68180
San Vittore del Lazio FR 18 2636 70816
Roccasicura IS 18 550 71366
Cervaro FR 18 8109 79475
Villa Latina FR 18 1241 80716
Ciorlano CE 19 426 81142
Pettoranello del Molise IS 19 460 81602
Barrea AQ 19 726 82328
Pesche IS 19 1661 83989
San Pietro Infine CE 19 944 84933
Settefrati FR 19 728 85661
Fontegreca CE 19 811 86472
Sesto Campano IS 20 2388 88860

Municipalities with at least 50000 inhabitants

An earthquake occurred to
63 Km NW of Caserta (76326 inhabitants)
71 Km N of Aversa (53047 inhabitants)
76 Km N of Giugliano in Campania (122974 inhabitants)
77 Km NW of Acerra (59573 inhabitants)
78 Km N of Afragola (65057 inhabitants)
79 Km N of Marano di Napoli (59874 inhabitants)
80 Km N of Casoria (77642 inhabitants)
80 Km NW of Benevento (60091 inhabitants)
84 Km N of Pozzuoli (81661 inhabitants)
84 Km S of Chieti (51815 inhabitants)
86 Km N of Napoli (974074 inhabitants)
90 Km N of Portici (55274 inhabitants)
91 Km N of Ercolano (53709 inhabitants)
94 Km N of Torre del Greco (86275 inhabitants)
97 Km E of Latina (125985 inhabitants)
97 Km S of Pescara (121014 inhabitants)
98 Km NW of Avellino (54857 inhabitants)
100 Km SE of L'Aquila (69753 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.0 2020-09-21
16:31:05
41.6 14.06 11 2020-09-21
16:44:33
Sala Sismica INGV-Roma 83109951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-21 16:31:05 ± 0.09
Latitude 41.60 ± 0.01
Longitude 14.06 ± 0.01
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 83109951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 705
Semi-minor axis of confidence ellipse (meter) 548
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 39
Circular confidence region, given by single value of horizontal uncertainty (meter) 710
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 95
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.42718
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 83109951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-21 16:44:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ZCCA.HNZ. 2020-09-21T16:32:47.35 3.0 undecidable manual Sg 12.06 0
XK.ALB1.HHZ. 2020-09-21T16:32:39.37 3.0 undecidable manual Sg 3.26 0
IV.SPS2.HHZ. 2020-09-21T16:32:35.87 3.0 undecidable manual Sg 7.72 0
IV.FIR.HHZ. 2020-09-21T16:32:26.24 3.0 undecidable manual Sg 3.07 0
IV.QLNO.HHZ. 2020-09-21T16:32:25.81 3.0 positive manual Pg 11.02 0
IV.SCIAC.HHZ. 2020-09-21T16:32:19.74 3.0 undecidable manual Pg 8.85 0
IV.CAPR.HNZ. 2020-09-21T16:32:07.89 3.0 negative manual Pn -3.88 0
GU.CARD.HHZ. 2020-09-21T16:32:00.17 3.0 undecidable manual Pg 6.15 0
IV.ZCCA.HNZ. 2020-09-21T16:31:53.05 3.0 undecidable manual Pg 0.58 0
XK.GIZZ.HHZ. 2020-09-21T16:31:49.21 3.0 positive manual Pn -2.67 0
IV.CAVE.HHZ. 2020-09-21T16:31:49.20 3.0 undecidable manual Pn -7.75 0
IV.VIVA.HHZ. 2020-09-21T16:31:46.68 3.0 undecidable manual Sg 0.34 0
IV.PZUN.HHZ. 2020-09-21T16:31:41.96 3.0 undecidable manual Sn -9.99 0
IV.MMO1.EHZ. 2020-09-21T16:31:38.50 3.0 undecidable manual Sg -2.11 0
IV.FDMO.HHZ. 2020-09-21T16:31:37.13 3.0 undecidable manual Sn -8.93 0
IV.SGTA.HHZ. 2020-09-21T16:31:35.87 3.0 undecidable manual Sg -3.81 0
IV.TDS.HHZ. 2020-09-21T16:31:34.25 3.0 undecidable manual Pn -9.63 0
IV.VITU.HHZ. 2020-09-21T16:31:29.74 0.6 undecidable manual Sn -4.07 1.41
IV.INTR.HNE. 2020-09-21T16:31:21.34 0.3 undecidable manual S 344 0.4272 50 0.26 66
IV.POFI.HHZ. 2020-09-21T16:31:17.04 0.3 undecidable manual S 295 0.2842 50 0.2 69
IV.FIAM.HHZ. 2020-09-21T16:31:16.48 3.0 positive manual P -4.09 0
IT.OPI.HGE. 2020-09-21T16:31:15.41 0.1 undecidable manual S 316 0.2455 50 -0.28 91
IV.VAGA.HHE. 2020-09-21T16:31:15.25 0.3 undecidable manual S 144 0.2266 50 0.13 71
IV.INTR.HNE. 2020-09-21T16:31:14.51 0.3 undecidable manual P 344 0.4272 50 -0.14 68
IV.POFI.HHZ. 2020-09-21T16:31:12.14 0.1 undecidable manual P 295 0.2842 50 -0.06 94
IV.RNI2.HHZ. 2020-09-21T16:31:12.49 0.3 undecidable manual S 34 0.125 128 0.53 66
IV.MIDA.HHZ. 2020-09-21T16:31:12.52 0.3 undecidable manual S 74 0.152 122 -0.29 69
IV.VAGA.HHE. 2020-09-21T16:31:11.11 0.3 undecidable manual P 144 0.2266 50 -0.1 71
IV.MCI.EHE. 2020-09-21T16:31:11.55 0.3 undecidable manual P 239 0.2131 50 0.56 64
IT.OPI.HGE. 2020-09-21T16:31:11.18 0.1 undecidable manual P 316 0.2455 50 -0.36 89
IV.MIDA.HHZ. 2020-09-21T16:31:09.66 0.1 undecidable manual P 74 0.152 122 -0.22 94
IV.RNI2.HHZ. 2020-09-21T16:31:09.61 0.1 undecidable manual P 34 0.125 128 0.22 94
IV.CERA.HHE. 2020-09-21T16:31:09.67 0.1 undecidable manual S 267 0.0297 163 -0.09 99
IV.CERA.HHE. 2020-09-21T16:31:08.10 0.1 undecidable manual P 267 0.0297 163 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RNI2.HHE. ML:1.1 0.0001215 0.36 AML other m 2020-09-21T16:31:16.56
IV.MIDA.HHN. ML:1.1 0.0001163 0.14 AML other m 2020-09-21T16:31:13.30
IV.RNI2.HHN. ML:1 9.71696E-5 0.2432 AML other m 2020-09-21T16:31:13.85
IV.RNI2.HNE. ML:0.7 4.6794825E-5 0.1664 AML other m 2020-09-21T16:31:12.52
IV.RNI2.HNN. ML:0.9 7.9366565E-5 0.1792 AML other m 2020-09-21T16:31:12.95
IV.MIDA.HNE. ML:1.2 0.00012874265 0.1536 AML other m 2020-09-21T16:31:13.30
IV.MIDA.HNN. ML:1.3 0.00015843855 0.7552 AML other m 2020-09-21T16:31:12.97
IV.POFI.HHE. ML:0 6.3714265E-6 0.1408 AML other m 2020-09-21T16:31:17.31
IV.POFI.HHN. ML:0.3 9.5560155E-6 0.64 AML other m 2020-09-21T16:31:17.15
IV.POFI.HNE. ML:1.3 0.000101193525 0.8576 AML other m 2020-09-21T16:31:17.89
IV.POFI.HNN. ML:1.3 9.8082835E-5 1.024 AML other m 2020-09-21T16:31:17.25
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download