Earthquake with magnitude of ML 1.3 on date 24-07-2021 and time 11:21:22 (Italy) in region 1 km SW Sepino (CB)

A magnitude ML 1.3 earthquake occured in region: 1 km SW Sepino (CB), on

  • 24-07-2021 09:21:22 (UTC)
  • 24-07-2021 11:21:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.403, 14.614 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
Sepino CB 1 1964 1964
Sassinoro BN 5 618 2582
San Giuliano del Sannio CB 6 1029 3611
Guardiaregia CB 7 801 4412
Cercepiccola CB 8 681 5093
Morcone BN 8 4932 10025
Pietraroja BN 8 545 10570
Santa Croce del Sannio BN 10 927 11497
Campochiaro CB 10 646 12143
Vinchiaturo CB 10 3324 15467
Cercemaggiore CB 11 3777 19244
Cusano Mutri BN 11 4091 23335
San Polo Matese CB 12 470 23805
Mirabello Sannitico CB 14 2180 25985
Cerreto Sannita BN 14 3940 29925
Pontelandolfo BN 14 2167 32092
Colle d'Anchise CB 14 807 32899
Baranello CB 15 2673 35572
Bojano CB 15 8058 43630
Ferrazzano CB 15 3344 46974
San Lorenzello BN 15 2227 49201
San Lupo BN 16 801 50002
Gildone CB 16 809 50811
Campolattaro BN 16 1072 51883
Castelpagano BN 16 1483 53366
Guardia Sanframondi BN 16 5078 58444
San Lorenzo Maggiore BN 17 2154 60598
Circello BN 17 2388 62986
Casalduni BN 17 1378 64364
Busso CB 18 1273 65637
Faicchio BN 18 3634 69271
Campobasso CB 18 49431 118702
Gioia Sannitica CE 18 3638 122340
Colle Sannita BN 19 2431 124771
Spinete CB 19 1320 126091
Castelvenere BN 19 2562 128653
San Massimo CB 20 855 129508
San Potito Sannitico CE 20 1925 131433
Jelsi CB 20 1781 133214

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NW of Benevento (60091 inhabitants)
43 Km NE of Caserta (76326 inhabitants)
55 Km NE of Acerra (59573 inhabitants)
56 Km N of Avellino (54857 inhabitants)
59 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)
68 Km NE of Portici (55274 inhabitants)
70 Km NE of Napoli (974074 inhabitants)
70 Km NE of Ercolano (53709 inhabitants)
71 Km W of San Severo (53905 inhabitants)
72 Km N of Torre del Greco (86275 inhabitants)
73 Km N of Scafati (50787 inhabitants)
76 Km NE of Pozzuoli (81661 inhabitants)
78 Km W of Foggia (151991 inhabitants)
78 Km N of Cava de' Tirreni (53659 inhabitants)
79 Km N of Castellammare di Stabia (66466 inhabitants)
81 Km N of Salerno (135261 inhabitants)
94 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 1.3 2021-07-24
09:21:22
41.4028 14.6143 10 2021-07-24
09:30:49
Sala Sismica INGV-Roma 93143471
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-24 09:21:22 ± 0.07
Latitude 41.4028 ± 0.0036
Longitude 14.6143 ± 0.0048
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 93143471

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 460
Semi-minor axis of confidence ellipse (meter) 376
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 31
Circular confidence region, given by single value of horizontal uncertainty (meter) 460
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.38401
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 25
Type of magnitude ML
Reference to an origin 93143471
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-24 09:30:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ZCCA.HHZ. 2021-07-24T09:23:20.84 3.0 undecidable manual Sg 14.87 0
CH.FUSIO.HHZ. 2021-07-24T09:23:17.83 3.0 negative manual Pg 21.799999 0
GU.RORO.HHZ. 2021-07-24T09:22:49.42 3.0 undecidable manual Pn 7.67 0
IV.FREG.EHZ. 2021-07-24T09:22:44.08 3.0 positive manual Pg 12.53 0
IT.FIE.HGZ. 2021-07-24T09:22:25.57 3.0 undecidable manual Pg 13.21 0
IV.ESCV.HHZ. 2021-07-24T09:22:23.60 3.0 positive manual Pg 5.51 0
IV.BDI.HHZ. 2021-07-24T09:22:20.93 3.0 undecidable manual Pn 0.98 0
IV.MF5.EHZ. 2021-07-24T09:22:18.13 3.0 undecidable manual Sg 6.14 0
IV.CAGR.HHZ. 2021-07-24T09:22:17.31 3.0 undecidable manual Pn -2.54 0
IT.MTCL.HGZ. 2021-07-24T09:22:16.87 3.0 undecidable manual Sn -0.33 0
IV.SRES.HHZ. 2021-07-24T09:22:15.15 3.0 undecidable manual Sn 1.31 0
IV.GIZZ.HHZ. 2021-07-24T09:22:12.04 3.0 negative manual Pg 7.56 0
IV.VIVA.HHZ. 2021-07-24T09:22:07.11 3.0 undecidable manual Sn 0.86 0
IV.SACS.HHZ. 2021-07-24T09:22:04.96 3.0 undecidable manual Pg 5.32 0
IV.FAGN.HHZ. 2021-07-24T09:21:56.05 3.0 undecidable manual S -1.2 0
IV.PP3.EHZ. 2021-07-24T09:21:56.82 3.0 negative manual Pg 3.48 0
IV.PIGN.HHE. 2021-07-24T09:21:37.44 0.6 undecidable manual S 238 0.384 50 0.6 42
IV.VITU.HHZ. 2021-07-24T09:21:32.13 0.1 undecidable manual S 177 0.2194 112 0.19 97
IV.PSB1.HHZ. 2021-07-24T09:21:32.53 0.1 undecidable manual S 141 0.232 50 0.19 97
IV.TRIV.HHE. 2021-07-24T09:21:30.63 0.6 undecidable manual P 352 0.3669 50 0.03 49
IV.PAOL.HHZ. 2021-07-24T09:21:30.38 0.1 undecidable manual P 185 0.3732 50 -0.33 91
IV.SGG.HHZ. 2021-07-24T09:21:30.35 0.3 undecidable manual S 265 0.1772 117 -0.09 75
IV.PIGN.HHE. 2021-07-24T09:21:30.76 0.1 undecidable manual P 238 0.384 50 -0.14 95
IV.BSSO.HHZ. 2021-07-24T09:21:29.55 1.0 undecidable manual S 354 0.1439 122 0.22 24
IV.VAGA.HHZ. 2021-07-24T09:21:29.25 0.6 negative manual P 273 0.2851 50 0.05 49
IV.VITU.HHZ. 2021-07-24T09:21:28.12 0.3 negative manual P 177 0.2194 112 0.06 75
IV.SGG.HHZ. 2021-07-24T09:21:27.22 0.6 negative manual P 265 0.1772 117 0.02 51
IV.SACR.HHZ. 2021-07-24T09:21:27.34 0.6 undecidable manual S 95 0.0683 143 0.18 50
IV.PSB1.HHZ. 2021-07-24T09:21:27.98 0.3 undecidable manual P 141 0.232 50 -0.32 71
IV.PTRJ.HHZ. 2021-07-24T09:21:27.29 0.3 undecidable manual S 239 0.0746 140 -0.02 78
IT.PLTA.HNZ. 2021-07-24T09:21:26.43 3.0 undecidable manual P -1.4 0
IV.BSSO.HHZ. 2021-07-24T09:21:26.74 0.1 undecidable manual P 354 0.1439 122 0.18 99
IV.SACR.HHZ. 2021-07-24T09:21:25.12 0.1 positive manual P 95 0.0683 143 -0.19 100
IV.PTRJ.HHZ. 2021-07-24T09:21:25.23 0.3 undecidable manual P 239 0.0746 140 -0.16 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SACR.HHN. ML:1.2 0.00024795985 0.2368 AML other m 2021-07-24T09:21:28.16
IV.SACR.HHE. ML:1.3 0.00026712975 0.3008 AML other m 2021-07-24T09:21:28.29
IV.BSSO.HHE. ML:0 0.0001891147 0.3456 AML other m 2021-07-24T09:21:30.47
IV.BSSO.HHN. ML:0 0.000152549685 0.1984 AML other m 2021-07-24T09:21:30.67
IV.SGG.HHN. ML:1.4 0.0002045 0.48 AML other m 2021-07-24T09:21:32.72
IV.SGG.HHE. ML:1.3 0.000146 0.32 AML other m 2021-07-24T09:21:33.23
IV.PSB1.HHE. ML:1.2 8.98E-5 0.16 AML other m 2021-07-24T09:21:33.86
IV.VITU.HHN. ML:1.5 0.0002085 0.36 AML other m 2021-07-24T09:21:35.16
IV.VITU.HHE. ML:1.4 0.00013616875 0.1408 AML other m 2021-07-24T09:21:33.33
IV.PSB1.HHN. ML:1.1 6.286692E-5 0.3968 AML other m 2021-07-24T09:21:36.71
IV.PAOL.HHE. ML:1 3.433213E-5 0.224 AML other m 2021-07-24T09:21:37.71
IV.VAGA.HHN. ML:1.5 0.0001535 1.66 AML other m 2021-07-24T09:21:38.14
IV.PAOL.HHN. ML:1.1 4.070944E-5 0.1792 AML other m 2021-07-24T09:21:37.50
IV.SACR.HNN. ML:1.2 0.00025957065 0.2688 AML other m 2021-07-24T09:21:28.16
IV.PTRJ.HHE. ML:-0.1 1.175584E-5 0.256 AML other m 2021-07-24T09:21:27.88
IV.PTRJ.HHN. ML:1.2 0.0002271112 0.256 AML other m 2021-07-24T09:21:27.76
IV.PTRJ.HNE. ML:1.6 0.0006088836 0.3712 AML other m 2021-07-24T09:21:27.71
IV.PTRJ.HNN. ML:1.6 0.0005056098 0.3008 AML other m 2021-07-24T09:21:27.74
IV.BSSO.HNE. ML:1.3 0.00018235375 0.3648 AML other m 2021-07-24T09:21:30.48
IV.BSSO.HNN. ML:1.2 0.0001399515 0.3584 AML other m 2021-07-24T09:21:31.13
IV.SGG.HNN. ML:1.4 0.00020324955 0.48 AML other m 2021-07-24T09:21:32.72
IV.PSB1.HNE. ML:1.3 0.000114884395 0.512 AML other m 2021-07-24T09:21:35.56
IV.VITU.HNN. ML:1.5 0.0001867172 0.48 AML other m 2021-07-24T09:21:36.13
IV.VAGA.HNE. ML:1.3 9.254432E-5 0.2048 AML other m 2021-07-24T09:21:36.78
IV.VAGA.HNN. ML:1.5 0.000134537795 0.1664 AML other m 2021-07-24T09:21:37.56
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