Earthquake with magnitude of ML 1.1 on date 26-07-2021 and time 21:00:24 (Italy) in region 2 km SE Sepino (CB)

A magnitude ML 1.1 earthquake occured in region: 2 km SE Sepino (CB), on

  • 26-07-2021 19:00:24 (UTC)
  • 26-07-2021 21:00:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.399, 14.634 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 2 1964 1964
Sassinoro BN 4 618 2582
San Giuliano del Sannio CB 6 1029 3611
Morcone BN 7 4932 8543
Cercepiccola CB 7 681 9224
Santa Croce del Sannio BN 8 927 10151
Guardiaregia CB 9 801 10952
Pietraroja BN 9 545 11497
Cercemaggiore CB 10 3777 15274
Vinchiaturo CB 11 3324 18598
Campochiaro CB 12 646 19244
Cusano Mutri BN 12 4091 23335
Pontelandolfo BN 13 2167 25502
Mirabello Sannitico CB 13 2180 27682
San Polo Matese CB 14 470 28152
Cerreto Sannita BN 14 3940 32092
Castelpagano BN 15 1483 33575
Campolattaro BN 15 1072 34647
Ferrazzano CB 15 3344 37991
Gildone CB 15 809 38800
Circello BN 15 2388 41188
San Lupo BN 15 801 41989
Baranello CB 16 2673 44662
San Lorenzello BN 16 2227 46889
Colle d'Anchise CB 16 807 47696
Guardia Sanframondi BN 16 5078 52774
Casalduni BN 16 1378 54152
San Lorenzo Maggiore BN 17 2154 56306
Bojano CB 17 8058 64364
Colle Sannita BN 17 2431 66795
Campobasso CB 18 49431 116226
Busso CB 18 1273 117499
Faicchio BN 19 3634 121133
Jelsi CB 19 1781 122914
Gioia Sannitica CE 19 3638 126552
Riccia CB 20 5262 131814
Castelvenere BN 20 2562 134376
Reino BN 20 1210 135586

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NW of Benevento (60091 inhabitants)
44 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)
60 Km NE of Afragola (65057 inhabitants)
62 Km NE of Casoria (77642 inhabitants)
64 Km NE of Giugliano in Campania (122974 inhabitants)
67 Km NE of Marano di Napoli (59874 inhabitants)
68 Km NE of Portici (55274 inhabitants)
70 Km NE of Ercolano (53709 inhabitants)
70 Km NE of Napoli (974074 inhabitants)
70 Km W of San Severo (53905 inhabitants)
72 Km NE of Torre del Greco (86275 inhabitants)
73 Km N of Scafati (50787 inhabitants)
76 Km W of Foggia (151991 inhabitants)
76 Km NE of Pozzuoli (81661 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)
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 2021-07-26
19:00:24
41.3993 14.6343 10 2021-07-26
19:04:09
Sala Sismica INGV-Roma 93248491
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-26 19:00:24 ± 0.19
Latitude 41.3993 ± 0.0072
Longitude 14.6343 ± 0.0108
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 93248491

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 788
Semi-minor axis of confidence ellipse (meter) 669
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 67
Circular confidence region, given by single value of horizontal uncertainty (meter) 790
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 104
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.05306
Epicentral distance of station farthest from the epicenter (degree) 0.30037
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:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 93248491
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-26 19:04:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VAGA.HHZ. 2021-07-26T19:00:37.10 0.6 undecidable manual S 273 0.3004 50 0.72 41
IV.PSB1.HHN. 2021-07-26T19:00:34.34 0.3 undecidable manual S 143 0.2203 111 0.58 66
IV.VITU.HHZ. 2021-07-26T19:00:33.58 0.3 undecidable manual S 181 0.2158 112 -0.04 75
IV.SGG.HHZ. 2021-07-26T19:00:32.90 0.3 undecidable manual S 266 0.1916 114 0.14 74
IV.BSSO.HHZ. 2021-07-26T19:00:31.65 0.3 undecidable manual S 348 0.1502 120 0.33 71
IV.VAGA.HHZ. 2021-07-26T19:00:31.07 0.6 positive manual P 273 0.3004 50 -0.36 46
IV.PSB1.HHN. 2021-07-26T19:00:29.64 0.1 undecidable manual P 143 0.2203 111 -0.28 95
IV.VITU.HHZ. 2021-07-26T19:00:29.58 1.0 undecidable manual P 181 0.2158 112 -0.26 24
IV.BSSO.HHZ. 2021-07-26T19:00:28.29 0.1 negative manual P 348 0.1502 120 -0.22 98
IV.SGG.HHZ. 2021-07-26T19:00:28.82 0.6 negative manual P 266 0.1916 114 -0.52 45
IV.SACR.HHZ. 2021-07-26T19:00:28.74 0.3 undecidable manual S 92 0.0531 148 0.18 75
IV.SACR.HHZ. 2021-07-26T19:00:26.73 0.1 positive manual P 92 0.0531 148 -0.19 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SACR.HHN. ML:1 0.0001575 1.52 AML other m 2021-07-26T19:00:29.78
IV.SACR.HHE. ML:0.9 0.000126 0.62 AML other m 2021-07-26T19:00:29.84
IV.BSSO.HHE. ML:1.3 0.000166 0.34 AML other m 2021-07-26T19:00:31.99
IV.BSSO.HHN. ML:1 9.225E-5 0.48 AML other m 2021-07-26T19:00:32.19
IV.SGG.HHN. ML:1.1 8.445E-5 0.48 AML other m 2021-07-26T19:00:34.21
IV.SGG.HHE. ML:1 6.425E-5 0.14 AML other m 2021-07-26T19:00:34.67
IV.VITU.HHE. ML:1 7.13E-5 0.52 AML other m 2021-07-26T19:00:35.45
IV.VITU.HHN. ML:1.2 0.00010805 0.4 AML other m 2021-07-26T19:00:36.70
IV.VAGA.HHE. ML:0.8 2.83E-5 0.46 AML other m 2021-07-26T19:00:37.83
IV.VAGA.HHN. ML:1.2 6.35E-5 0.2 AML other m 2021-07-26T19:00:39.49
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