Earthquake with magnitude of ML 1.0 on date 23-11-2020 and time 01:25:07 (Italy) in region 3 km S Cercepiccola (CB)

A magnitude ML 1.0 earthquake occured in region: 3 km S Cercepiccola (CB), on

  • 23-11-2020 00:25:07 (UTC)
  • 23-11-2020 01:25:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.43, 14.67 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
Cercepiccola CB 3 681 681
San Giuliano del Sannio CB 4 1029 1710
Sepino CB 5 1964 3674
Cercemaggiore CB 5 3777 7451
Sassinoro BN 7 618 8069
Santa Croce del Sannio BN 7 927 8996
Mirabello Sannitico CB 9 2180 11176
Vinchiaturo CB 10 3324 14500
Morcone BN 10 4932 19432
Gildone CB 10 809 20241
Ferrazzano CB 11 3344 23585
Guardiaregia CB 11 801 24386
Castelpagano BN 12 1483 25869
Pietraroja BN 14 545 26414
Campochiaro CB 14 646 27060
Baranello CB 14 2673 29733
Campobasso CB 14 49431 79164
Jelsi CB 14 1781 80945
Circello BN 14 2388 83333
Riccia CB 15 5262 88595
San Polo Matese CB 15 470 89065
Campodipietra CB 15 2570 91635
Colle d'Anchise CB 15 807 92442
Colle Sannita BN 16 2431 94873
Pontelandolfo BN 16 2167 97040
Busso CB 16 1273 98313
Campolattaro BN 17 1072 99385
Cusano Mutri BN 17 4091 103476
Toro CB 18 1391 104867
Bojano CB 18 8058 112925
San Giovanni in Galdo CB 18 580 113505
Oratino CB 19 1641 115146
Casalduni BN 19 1378 116524
Cerreto Sannita BN 19 3940 120464
San Lupo BN 19 801 121265
Spinete CB 20 1320 122585
Ripalimosani CB 20 3114 125699

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km N of Benevento (60091 inhabitants)
49 Km NE of Caserta (76326 inhabitants)
59 Km N of Avellino (54857 inhabitants)
60 Km NE of Acerra (59573 inhabitants)
64 Km NE of Aversa (53047 inhabitants)
64 Km NE of Afragola (65057 inhabitants)
65 Km W of San Severo (53905 inhabitants)
67 Km NE of Casoria (77642 inhabitants)
69 Km NE of Giugliano in Campania (122974 inhabitants)
72 Km NE of Marano di Napoli (59874 inhabitants)
73 Km NE of Portici (55274 inhabitants)
73 Km W of Foggia (151991 inhabitants)
75 Km NE of Ercolano (53709 inhabitants)
75 Km NE of Napoli (974074 inhabitants)
76 Km NE of Torre del Greco (86275 inhabitants)
77 Km N of Scafati (50787 inhabitants)
81 Km NE of Pozzuoli (81661 inhabitants)
81 Km N of Cava de' Tirreni (53659 inhabitants)
84 Km N of Castellammare di Stabia (66466 inhabitants)
84 Km N of Salerno (135261 inhabitants)
95 Km N of Battipaglia (50786 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 2020-11-23
00:25:07
41.43 14.67 10 2020-11-23
00:32:29
Sala Sismica INGV-Roma 84957761
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-23 00:25:07 ± 0.23
Latitude 41.43 ± 0.02
Longitude 14.67 ± 0.02
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84957761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1919
Semi-minor axis of confidence ellipse (meter) 558
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 326
Circular confidence region, given by single value of horizontal uncertainty (meter) 1920
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 171
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.46
Epicentral distance of station closest to the epicenter (degree) 0.1268
Epicentral distance of station farthest from the epicenter (degree) 0.32915
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.1
Num. used stations 5
Type of magnitude ML
Reference to an origin 84957761
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-23 00:32:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VAGA.HHZ. 2020-11-23T00:25:20.77 0.3 undecidable manual S 267 0.3292 50 0.31 71
IV.CIGN.HHE. 2020-11-23T00:25:18.40 0.3 undecidable manual S 38 0.2806 50 -0.62 65
IV.SGG.HHZ. 2020-11-23T00:25:16.47 0.3 undecidable manual S 258 0.2248 111 -0.77 62
IV.VAGA.HHZ. 2020-11-23T00:25:16.06 0.3 undecidable manual P 267 0.3292 50 0.89 58
IV.PTRJ.HHZ. 2020-11-23T00:25:14.38 0.6 undecidable manual S 237 0.1286 124 0.47 47
IV.CIGN.HHE. 2020-11-23T00:25:14.18 0.1 undecidable manual P 38 0.2806 50 -0.16 98
IV.BSSO.HHZ. 2020-11-23T00:25:14.01 0.3 undecidable manual S 332 0.1268 124 0.13 76
IV.GATE.HHZ. 2020-11-23T00:25:13.04 0.1 undecidable manual P 66 0.1943 114 0.36 96
IV.SGG.HHZ. 2020-11-23T00:25:12.95 0.1 undecidable manual P 258 0.2248 111 -0.36 95
IV.PTRJ.HHZ. 2020-11-23T00:25:11.17 0.1 undecidable manual P 237 0.1286 124 -0.22 100
IV.BSSO.HHZ. 2020-11-23T00:25:11.57 0.1 undecidable manual P 332 0.1268 124 0.2 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SGG.HHE. ML:0.9 4.505E-5 1.04 AML other m 2020-11-23T00:25:18.89
IV.SGG.HHN. ML:1 5.56E-5 0.5 AML other m 2020-11-23T00:25:19.37
IV.PTRJ.HHN. ML:1 0.000107618835 0.28 AML other m 2020-11-23T00:25:15.09
IV.VAGA.HHE. ML:0.9 2.75803495E-5 0.16 AML other m 2020-11-23T00:25:21.57
IV.VAGA.HHN. ML:1 4.047001E-5 0.2 AML other m 2020-11-23T00:25:23.96
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