Earthquake with magnitude of ML 1.1 on date 22-09-2020 and time 23:53:00 (Italy) in region 4 km S Scapoli (IS)

A magnitude ML 1.1 earthquake occured in region: 4 km S Scapoli (IS), on

  • 22-09-2020 21:53:00 (UTC)
  • 22-09-2020 23:53:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.58, 14.05 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 4 680 680
Filignano IS 4 648 1328
Colli a Volturno IS 5 1349 2677
Rocchetta a Volturno IS 5 1113 3790
Montaquila IS 6 2456 6246
Castel San Vincenzo IS 8 516 6762
Fornelli IS 8 1909 8671
Pozzilli IS 8 2380 11051
Cerro al Volturno IS 9 1281 12332
Pizzone IS 9 329 12661
Acquafondata FR 9 263 12924
Viticuso FR 9 353 13277
Macchia d'Isernia IS 10 1035 14312
San Biagio Saracinisco FR 11 349 14661
Conca Casale IS 11 200 14861
Venafro IS 11 11280 26141
Vallerotonda FR 12 1581 27722
Monteroduni IS 13 2264 29986
Acquaviva d'Isernia IS 13 425 30411
Montenero Val Cocchiara IS 15 538 30949
Isernia IS 15 21842 52791
Capriati a Volturno CE 15 1541 54332
Sant'Agapito IS 15 1496 55828
Sant'Elia Fiumerapido FR 16 6166 61994
Rionero Sannitico IS 16 1118 63112
San Vittore del Lazio FR 16 2636 65748
Forlì del Sannio IS 17 675 66423
Picinisco FR 17 1218 67641
Cervaro FR 17 8109 75750
Alfedena AQ 17 864 76614
San Pietro Infine CE 17 944 77558
Ciorlano CE 17 426 77984
Miranda IS 18 1047 79031
Longano IS 18 690 79721
Villa Latina FR 18 1241 80962
Scontrone AQ 18 574 81536
Fontegreca CE 18 811 82347
Sesto Campano IS 18 2388 84735
Pettoranello del Molise IS 19 460 85195
Settefrati FR 19 728 85923
Pesche IS 20 1661 87584
Belmonte Castello FR 20 739 88323
Gallo Matese CE 20 579 88902
Roccasicura IS 20 550 89452
Barrea AQ 20 726 90178

Municipalities with at least 50000 inhabitants

An earthquake occurred to
61 Km NW of Caserta (76326 inhabitants)
69 Km N of Aversa (53047 inhabitants)
74 Km N of Giugliano in Campania (122974 inhabitants)
76 Km NW of Acerra (59573 inhabitants)
77 Km N of Afragola (65057 inhabitants)
77 Km N of Marano di Napoli (59874 inhabitants)
78 Km N of Casoria (77642 inhabitants)
79 Km NW of Benevento (60091 inhabitants)
82 Km N of Pozzuoli (81661 inhabitants)
85 Km N of Napoli (974074 inhabitants)
86 Km S of Chieti (51815 inhabitants)
88 Km N of Portici (55274 inhabitants)
90 Km N of Ercolano (53709 inhabitants)
93 Km N of Torre del Greco (86275 inhabitants)
96 Km E of Latina (125985 inhabitants)
97 Km NW of Avellino (54857 inhabitants)
99 Km S of Pescara (121014 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 1.1 2020-09-22
21:53:00
41.59 14.05 11 2020-09-22
22:03:35
Sala Sismica INGV-Roma 83140801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-22 21:53:00 ± 0.13
Latitude 41.59 ± 0.01
Longitude 14.05 ± 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 83140801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 972
Semi-minor axis of confidence ellipse (meter) 677
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 175
Circular confidence region, given by single value of horizontal uncertainty (meter) 970
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 157
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.02698
Epicentral distance of station farthest from the epicenter (degree) 0.43977
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 83140801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-22 22:03:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.INTR.HHZ. 2020-09-22T21:53:16.03 0.6 undecidable manual S 346 0.4398 50 -0.05 46
IV.VVLD.HHE. 2020-09-22T21:53:15.68 0.6 undecidable manual S 312 0.4263 50 -0.01 46
IV.POFI.HHE. 2020-09-22T21:53:12.10 0.6 undecidable manual S 298 0.2851 50 0.61 44
IT.OPI.HGZ. 2020-09-22T21:53:10.02 1.0 undecidable manual S 319 0.2518 50 -0.49 21
IV.INTR.HHZ. 2020-09-22T21:53:09.58 1.0 positive manual P 346 0.4398 50 0.06 23
IV.VVLD.HHE. 2020-09-22T21:53:08.95 0.3 undecidable manual P 312 0.4263 50 -0.34 64
IV.RNI2.HHZ. 2020-09-22T21:53:07.79 0.6 undecidable manual S 33 0.1403 125 0.61 42
IV.MIDA.HHZ. 2020-09-22T21:53:07.70 0.6 undecidable manual S 70 0.1628 50 -0.17 48
IV.VAGA.HHZ. 2020-09-22T21:53:06.04 0.6 negative manual P 141 0.2185 50 0.29 47
IV.POFI.HHE. 2020-09-22T21:53:06.91 0.6 undecidable manual P 298 0.2851 50 0.04 48
IT.OPI.HGZ. 2020-09-22T21:53:05.86 1.0 undecidable manual P 319 0.2518 50 -0.45 22
IV.MIDA.HHZ. 2020-09-22T21:53:04.62 0.3 positive manual P 70 0.1628 50 -0.17 72
IV.CERA.HHZ. 2020-09-22T21:53:04.37 0.6 undecidable manual S 298 0.027 165 -0.12 50
IV.RNI2.HHZ. 2020-09-22T21:53:04.39 0.3 positive manual P 33 0.1403 125 0.01 74
IV.CERA.HHZ. 2020-09-22T21:53:02.88 0.1 undecidable manual P 298 0.027 165 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CERA.HNN. ML:1.2 0.000279 0.4 AML other m 2020-09-22T21:53:04.81
IV.CERA.HHN. ML:1.3 0.0002985 0.62 AML other m 2020-09-22T21:53:04.81
IV.CERA.HHE. ML:1 0.000182 0.5 AML other m 2020-09-22T21:53:07.16
IV.CERA.HNE. ML:1 0.000184 0.5 AML other m 2020-09-22T21:53:07.17
IV.MIDA.HHE. ML:1.1 9.9E-5 0.3 AML other m 2020-09-22T21:53:08.17
IV.MIDA.HHN. ML:1.1 9.59E-5 0.5 AML other m 2020-09-22T21:53:08.03
IV.MIDA.HNE. ML:1 8.375E-5 0.16 AML other m 2020-09-22T21:53:08.36
IV.RNI2.HHN. ML:0.9 7.47E-5 0.54 AML other m 2020-09-22T21:53:09.59
IV.RNI2.HHE. ML:1 9.155E-5 1.04 AML other m 2020-09-22T21:53:11.76
IV.VAGA.HHN. ML:1.1 7.49E-5 1.36 AML other m 2020-09-22T21:53:13.91
IV.VAGA.HHE. ML:0.9 4.485E-5 0.64 AML other m 2020-09-22T21:53:13.75
IV.MIDA.HNN. ML:1.7 0.0003999 1.44 AML other m 2020-09-22T21:53:14.10
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