Earthquake with magnitude of ML 1.1 on date 24-07-2021 and time 18:36:14 (Italy) in region 1 km S Sepino (CB)

A magnitude ML 1.1 earthquake occured in region: 1 km S Sepino (CB), on

  • 24-07-2021 16:36:14 (UTC)
  • 24-07-2021 18:36:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.397, 14.616 at 9 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
Sepino CB 1 1964 1964
Sassinoro BN 5 618 2582
San Giuliano del Sannio CB 7 1029 3611
Morcone BN 7 4932 8543
Guardiaregia CB 8 801 9344
Pietraroja BN 8 545 9889
Cercepiccola CB 8 681 10570
Santa Croce del Sannio BN 10 927 11497
Campochiaro CB 11 646 12143
Cusano Mutri BN 11 4091 16234
Vinchiaturo CB 11 3324 19558
Cercemaggiore CB 11 3777 23335
San Polo Matese CB 12 470 23805
Cerreto Sannita BN 13 3940 27745
Pontelandolfo BN 14 2167 29912
Mirabello Sannitico CB 14 2180 32092
San Lorenzello BN 15 2227 34319
Colle d'Anchise CB 15 807 35126
San Lupo BN 15 801 35927
Baranello CB 15 2673 38600
Campolattaro BN 15 1072 39672
Bojano CB 15 8058 47730
Guardia Sanframondi BN 16 5078 52808
Ferrazzano CB 16 3344 56152
Castelpagano BN 16 1483 57635
San Lorenzo Maggiore BN 16 2154 59789
Gildone CB 16 809 60598
Casalduni BN 17 1378 61976
Circello BN 17 2388 64364
Faicchio BN 17 3634 67998
Gioia Sannitica CE 18 3638 71636
Busso CB 18 1273 72909
Campobasso CB 18 49431 122340
Colle Sannita BN 19 2431 124771
Castelvenere BN 19 2562 127333
San Potito Sannitico CE 20 1925 129258
Spinete CB 20 1320 130578

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NW of Benevento (60091 inhabitants)
43 Km NE of Caserta (76326 inhabitants)
54 Km NE of Acerra (59573 inhabitants)
56 Km N of Avellino (54857 inhabitants)
58 Km NE of Aversa (53047 inhabitants)
59 Km NE of Afragola (65057 inhabitants)
61 Km NE of Casoria (77642 inhabitants)
63 Km NE of Giugliano in Campania (122974 inhabitants)
66 Km NE of Marano di Napoli (59874 inhabitants)
67 Km NE of Portici (55274 inhabitants)
69 Km NE of Ercolano (53709 inhabitants)
69 Km NE of Napoli (974074 inhabitants)
71 Km N of Torre del Greco (86275 inhabitants)
71 Km W of San Severo (53905 inhabitants)
72 Km N of Scafati (50787 inhabitants)
75 Km NE of Pozzuoli (81661 inhabitants)
78 Km N of Cava de' Tirreni (53659 inhabitants)
78 Km W of Foggia (151991 inhabitants)
79 Km N of Castellammare di Stabia (66466 inhabitants)
81 Km N of Salerno (135261 inhabitants)
93 Km NW of Battipaglia (50786 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 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 2021-07-24
16:36:14
41.3968 14.6165 9 2021-07-24
16:45:45
Sala Sismica INGV-Roma 93159651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-24 16:36:14 ± 0.16
Latitude 41.3968 ± 0.0063
Longitude 14.6165 ± 0.0096
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 93159651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 694
Semi-minor axis of confidence ellipse (meter) 578
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 201
Circular confidence region, given by single value of horizontal uncertainty (meter) 690
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.28688
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 93159651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-24 16:45:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ZONE.HHZ. 2021-07-24T16:37:51.09 3.0 positive manual Pg 17.690001 0
IV.SGAL.EHZ. 2021-07-24T16:37:43.00 3.0 undecidable manual Pg 12.91 0
IV.BRSN.HNZ. 2021-07-24T16:37:42.94 3.0 undecidable manual Sn -4.31 0
IV.GIZZ.HHZ. 2021-07-24T16:37:29.70 3.0 undecidable manual Sg 4.16 0
IV.ZEN8.EHZ. 2021-07-24T16:37:28.41 3.0 undecidable manual Pn -0.03 0
GU.GRAM.HHZ. 2021-07-24T16:37:27.43 3.0 positive manual Pn 6.31 0
IV.GAVE.EHZ. 2021-07-24T16:37:09.94 3.0 undecidable manual Sn 1.92 0
IV.SRES.HHZ. 2021-07-24T16:37:06.89 3.0 undecidable manual Sn -0.28 0
IV.GIZZ.HHZ. 2021-07-24T16:37:00.17 3.0 negative manual Pg 6.7 0
IV.CDRU.HHZ. 2021-07-24T16:36:44.55 3.0 undecidable manual S -0.4 0
IX.SCL3.EHZ.02 2021-07-24T16:36:39.31 3.0 undecidable manual S -3.68 0
IV.VCEL.EHZ. 2021-07-24T16:36:34.58 3.0 undecidable manual Pg 0.25 0
OT.OT14.EHZ. 2021-07-24T16:36:30.84 3.0 positive manual P -0.86 0
IV.VAGA.HHZ. 2021-07-24T16:36:25.61 0.6 undecidable manual S 274 0.2869 50 0.15 49
IV.VITU.HNZ. 2021-07-24T16:36:23.24 0.6 undecidable manual S 177 0.214 111 0.31 48
IV.PSB1.HHZ. 2021-07-24T16:36:23.69 0.3 undecidable manual S 140 0.2266 110 0.3 71
IV.SGG.HHZ. 2021-07-24T16:36:21.92 0.6 undecidable manual S 267 0.1781 115 0.26 49
IV.BSSO.HHZ. 2021-07-24T16:36:21.32 0.3 undecidable manual S 354 0.1502 119 0.62 66
IV.VAGA.HHZ. 2021-07-24T16:36:20.57 0.3 undecidable manual P 274 0.2869 50 -0.09 74
IV.VITU.HNZ. 2021-07-24T16:36:19.67 0.3 undecidable manual P 177 0.214 111 0.48 69
IV.PSB1.HHZ. 2021-07-24T16:36:19.16 0.1 undecidable manual P 140 0.2266 110 -0.3 95
IV.SACR.HHZ. 2021-07-24T16:36:18.04 0.3 undecidable manual S 90 0.0665 141 -0.16 76
IV.PTRJ.HHZ. 2021-07-24T16:36:18.31 0.6 undecidable manual S 243 0.0737 139 -0.05 52
IV.SGG.HHZ. 2021-07-24T16:36:17.70 0.3 undecidable manual P 267 0.1781 115 -0.76 62
IV.BSSO.HHZ. 2021-07-24T16:36:17.83 0.3 undecidable manual P 354 0.1502 119 -0.08 76
IV.PTRJ.HHZ. 2021-07-24T16:36:16.48 0.3 undecidable manual P 243 0.0737 139 -0.08 77
IV.SACR.HHZ. 2021-07-24T16:36:16.25 0.1 undecidable manual P 90 0.0665 141 -0.22 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SACR.HHN. ML:1.1 0.000181 0.52 AML other m 2021-07-24T16:36:18.29
IV.SACR.HHE. ML:1 0.0001645 0.68 AML other m 2021-07-24T16:36:19.41
IV.BSSO.HHE. ML:1.2 0.0001355 0.36 AML other m 2021-07-24T16:36:21.61
IV.BSSO.HHN. ML:1.2 0.0001295 0.62 AML other m 2021-07-24T16:36:21.80
IV.SGG.HHN. ML:1.2 0.00012135 1.58 AML other m 2021-07-24T16:36:24.86
IV.SGG.HHE. ML:1.1 9.185E-5 0.3 AML other m 2021-07-24T16:36:25.38
IV.VAGA.HHE. ML:0.9 3.72E-5 0.86 AML other m 2021-07-24T16:36:27.46
IV.VAGA.HHN. ML:1.4 0.0001031 1.14 AML other m 2021-07-24T16:36:28.69
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