Earthquake with magnitude of ML 1.5 on date 21-09-2020 and time 18:39:58 (Italy) in region 2 km S Scapoli (IS)

A magnitude ML 1.5 earthquake occured in region: 2 km S Scapoli (IS), on

  • 21-09-2020 16:39:58 (UTC)
  • 21-09-2020 18:39:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6, 14.06 at 10 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 3 1113 1793
Colli a Volturno IS 4 1349 3142
Castel San Vincenzo IS 6 516 3658
Montaquila IS 6 2456 6114
Filignano IS 6 648 6762
Fornelli IS 7 1909 8671
Cerro al Volturno IS 7 1281 9952
Pizzone IS 8 329 10281
Macchia d'Isernia IS 10 1035 11316
Pozzilli IS 10 2380 13696
Acquaviva d'Isernia IS 11 425 14121
Acquafondata FR 11 263 14384
San Biagio Saracinisco FR 11 349 14733
Viticuso FR 11 353 15086
Montenero Val Cocchiara IS 13 538 15624
Conca Casale IS 13 200 15824
Venafro IS 13 11280 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
Alfedena AQ 15 864 55448
Sant'Agapito IS 15 1496 56944
Miranda IS 16 1047 57991
Scontrone AQ 16 574 58565
Capriati a Volturno CE 16 1541 60106
Picinisco FR 17 1218 61324
Sant'Elia Fiumerapido FR 18 6166 67490
Roccasicura IS 18 550 68040
Longano IS 18 690 68730
Barrea AQ 18 726 69456
San Vittore del Lazio FR 18 2636 72092
Pettoranello del Molise IS 18 460 72552
Villa Latina FR 19 1241 73793
Pesche IS 19 1661 75454
Cervaro FR 19 8109 83563
Ciorlano CE 19 426 83989
Settefrati FR 19 728 84717
Fontegreca CE 19 811 85528
San Pietro Infine CE 19 944 86472

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 S of Chieti (51815 inhabitants)
84 Km N of Pozzuoli (81661 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 S of Pescara (121014 inhabitants)
97 Km E of Latina (125985 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 1.5 2020-09-21
16:39:58
41.6 14.06 10 2020-09-21
16:49:36
Sala Sismica INGV-Roma 83110131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-21 16:39:58 ± 0.08
Latitude 41.60 ± 0.01
Longitude 14.06 ± 0.01
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83110131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 556
Semi-minor axis of confidence ellipse (meter) 454
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 23
Circular confidence region, given by single value of horizontal uncertainty (meter) 560
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 94
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.42448
Number of stations at which the event was observed 34
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 83110131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-21 16:49:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.BRSN.EHZ. 2020-09-21T16:41:35.85 3.0 undecidable manual Sg 7.24 0
IV.FERS.HNZ. 2020-09-21T16:41:34.44 3.0 undecidable manual Sn -9.99 0
IV.RONT.HHZ. 2020-09-21T16:41:29.32 3.0 undecidable manual Sg 4.3 0
IT.FIE.HGZ. 2020-09-21T16:41:27.59 3.0 undecidable manual Sg 5.9 0
SL.KOGS.BHZ. 2020-09-21T16:41:25.47 3.0 undecidable manual Pg 13.01 0
HL.VLS.HHZ. 2020-09-21T16:41:23.88 3.0 undecidable manual Pg 17.76 0
ST.PANI.EHZ. 2020-09-21T16:41:17.72 3.0 negative manual Pg 13.69 0
IV.CRTC.HHZ. 2020-09-21T16:41:13.36 3.0 undecidable manual Sn -0.69 0
IT.LNT.HGZ. 2020-09-21T16:41:08.89 3.0 undecidable manual Sn 0.23 0
IV.ZONE.HHZ. 2020-09-21T16:41:06.57 3.0 positive manual Pn 2.46 0
IV.PE3.EHZ. 2020-09-21T16:41:05.34 3.0 undecidable manual Sn -7.79 0
IV.MSAG.HHZ. 2020-09-21T16:40:56.08 3.0 undecidable manual Sg 6.91 0
IV.MAON.HHZ. 2020-09-21T16:40:48.01 3.0 undecidable manual Sn -5.77 0
OT.OT05.EHZ. 2020-09-21T16:40:45.43 3.0 undecidable manual Sg 1.57 0
IV.VCEL.EHZ. 2020-09-21T16:40:40.94 3.0 undecidable manual Sg -0.52 0
IV.SGTA.HHZ. 2020-09-21T16:40:30.68 3.0 undecidable manual S -2.63 0
IV.RUFI.EHZ. 2020-09-21T16:40:27.55 3.0 positive manual Pn -6.95 0
IV.MMUR.HNZ. 2020-09-21T16:40:26.39 3.0 undecidable manual Pn 0.33 0
IV.MCRV.HHZ. 2020-09-21T16:40:23.86 3.0 undecidable manual S -2.74 0
XK.GIZZ.HHZ. 2020-09-21T16:40:16.89 3.0 negative manual Pn -1.78 0
IV.TERO.HHZ. 2020-09-21T16:40:14.48 3.0 undecidable manual Pn -0.5 0
IV.TRIV.HHZ. 2020-09-21T16:40:13.21 0.3 undecidable manual S 66 0.4011 50 0.35 66
IV.INTR.HHZ. 2020-09-21T16:40:13.76 0.3 undecidable manual S 344 0.4245 50 0.19 68
IV.PZUN.HHZ. 2020-09-21T16:40:10.82 3.0 positive manual Pg 0.87 0
IV.SGG.HHZ. 2020-09-21T16:40:10.00 0.6 undecidable manual S 132 0.322 50 -0.52 43
IV.POFI.HNZ. 2020-09-21T16:40:09.62 0.3 undecidable manual S 294 0.2842 50 0.22 70
IV.VBKN.HHZ. 2020-09-21T16:40:08.16 3.0 undecidable manual S -5.93 0
IT.OPI.HGN. 2020-09-21T16:40:07.87 0.3 undecidable manual S 315 0.2437 50 -0.35 68
IV.VAGA.HHZ. 2020-09-21T16:40:07.89 0.3 undecidable manual S 145 0.2275 50 0.15 71
IV.TRIV.HHZ. 2020-09-21T16:40:07.18 0.3 undecidable manual P 66 0.4011 50 0.45 65
IV.MCI.EHZ. 2020-09-21T16:40:07.76 0.3 undecidable manual S 239 0.2158 50 0.38 68
IV.INTR.HHZ. 2020-09-21T16:40:06.86 0.3 undecidable manual P 344 0.4245 50 -0.28 67
IV.SGG.HHZ. 2020-09-21T16:40:05.70 0.3 undecidable manual P 132 0.322 50 0.32 68
IV.POFI.HNZ. 2020-09-21T16:40:04.55 0.1 undecidable manual P 294 0.2842 50 -0.18 94
IV.RNI2.HHZ. 2020-09-21T16:40:04.23 0.1 undecidable manual S 34 0.1223 127 -0.01 100
IV.MIDA.HNE. 2020-09-21T16:40:04.75 0.3 undecidable manual S 75 0.1502 122 -0.39 69
IV.CMPR.HHZ. 2020-09-21T16:40:03.23 3.0 undecidable manual P -1.02 0
IT.OPI.HGN. 2020-09-21T16:40:03.67 0.1 undecidable manual P 315 0.2437 50 -0.38 91
IV.VAGA.HHZ. 2020-09-21T16:40:03.33 0.1 undecidable manual P 145 0.2275 50 -0.44 90
IV.MCI.EHZ. 2020-09-21T16:40:03.58 0.1 undecidable manual P 239 0.2158 50 0.01 98
IV.MIDA.HNE. 2020-09-21T16:40:02.21 0.1 undecidable manual P 75 0.1502 122 -0.06 99
IV.CERA.HHZ. 2020-09-21T16:40:02.16 0.3 undecidable manual S 261 0.0315 161 0.05 76
IV.RNI2.HHZ. 2020-09-21T16:40:02.14 0.1 positive manual P 34 0.1223 127 0.39 92
IV.CERA.HHZ. 2020-09-21T16:40:00.62 0.1 undecidable manual P 261 0.0315 161 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CERA.HHN. ML:1.7 0.0009915 0.76 AML other m 2020-09-21T16:40:02.57
IV.CERA.HNN. ML:1.7 0.000928 0.76 AML other m 2020-09-21T16:40:02.57
IV.CERA.HNE. ML:1.5 0.000633 0.62 AML other m 2020-09-21T16:40:02.61
IV.CERA.HHE. ML:1.6 0.00067 0.62 AML other m 2020-09-21T16:40:02.61
IV.RNI2.HHN. ML:1.6 0.000363 0.6 AML other m 2020-09-21T16:40:06.67
IV.RNI2.HNN. ML:1.6 0.00037 0.6 AML other m 2020-09-21T16:40:06.37
IV.RNI2.HNE. ML:1.6 0.0003765 0.16 AML other m 2020-09-21T16:40:07.00
IV.RNI2.HHE. ML:1.6 0.000402 0.16 AML other m 2020-09-21T16:40:07.00
IV.VAGA.HNN. ML:1.7 0.0002655 0.88 AML other m 2020-09-21T16:40:09.74
IV.VAGA.HHN. ML:1.6 0.000261 0.88 AML other m 2020-09-21T16:40:09.74
IV.VAGA.HNE. ML:1.4 0.0001285 0.6 AML other m 2020-09-21T16:40:09.84
IV.VAGA.HHE. ML:1.4 0.0001305 0.3 AML other m 2020-09-21T16:40:09.69
IV.SGG.HHN. ML:1.2 5.495E-5 1.64 AML other m 2020-09-21T16:40:12.96
IV.INTR.HHE. ML:1.6 0.0001107 1.52 AML other m 2020-09-21T16:40:14.18
IV.INTR.HHN. ML:1.7 0.000146 1.42 AML other m 2020-09-21T16:40:14.96
IV.SGG.HHE. ML:1.2 6.19E-5 0.38 AML other m 2020-09-21T16:40:15.99
IV.RONT.HHE. ML:2.8 6.215E-5 1.42 AML other m 2020-09-21T16:41:55.20
IV.RONT.HHN. ML:2.8 6.065E-5 0.74 AML other m 2020-09-21T16:41:58.24
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