Earthquake with magnitude of ML 0.9 on date 10-08-2021 and time 12:22:33 (Italy) in region 3 km SE Mirabello Sannitico (CB)

A magnitude ML 0.9 earthquake occured in region: 3 km SE Mirabello Sannitico (CB), on

  • 10-08-2021 10:22:33 (UTC)
  • 10-08-2021 12:22:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.493, 14.696 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
Mirabello Sannitico CB 3 2180 2180
Cercemaggiore CB 4 3777 5957
Gildone CB 4 809 6766
Cercepiccola CB 4 681 7447
Ferrazzano CB 5 3344 10791
San Giuliano del Sannio CB 6 1029 11820
Campobasso CB 8 49431 61251
Campodipietra CB 9 2570 63821
Jelsi CB 9 1781 65602
Vinchiaturo CB 9 3324 68926
Toro CB 11 1391 70317
Sepino CB 11 1964 72281
San Giovanni in Galdo CB 12 580 72861
Riccia CB 12 5262 78123
Santa Croce del Sannio BN 12 927 79050
Baranello CB 12 2673 81723
Busso CB 13 1273 82996
Sassinoro BN 13 618 83614
Matrice CB 14 1115 84729
Ripalimosani CB 14 3114 87843
Castelpagano BN 14 1483 89326
Oratino CB 14 1641 90967
Guardiaregia CB 14 801 91768
Colle d'Anchise CB 15 807 92575
Monacilioni CB 16 523 93098
Campochiaro CB 17 646 93744
Morcone BN 17 4932 98676
Campolieto CB 17 839 99515
Casalciprano CB 17 564 100079
San Polo Matese CB 17 470 100549
Montagano CB 17 1086 101635
Circello BN 18 2388 104023
Pietracatella CB 18 1375 105398
Castropignano CB 18 947 106345
Spinete CB 18 1320 107665
Colle Sannita BN 18 2431 110096
Gambatesa CB 18 1464 111560
Bojano CB 19 8058 119618

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km N of Benevento (60091 inhabitants)
55 Km NE of Caserta (76326 inhabitants)
61 Km W of San Severo (53905 inhabitants)
65 Km N of Avellino (54857 inhabitants)
67 Km NE of Acerra (59573 inhabitants)
71 Km W of Foggia (151991 inhabitants)
71 Km NE of Aversa (53047 inhabitants)
71 Km NE of Afragola (65057 inhabitants)
74 Km NE of Casoria (77642 inhabitants)
75 Km NE of Giugliano in Campania (122974 inhabitants)
78 Km NE of Marano di Napoli (59874 inhabitants)
80 Km NE of Portici (55274 inhabitants)
81 Km NE of Ercolano (53709 inhabitants)
82 Km NE of Napoli (974074 inhabitants)
83 Km NE of Torre del Greco (86275 inhabitants)
84 Km N of Scafati (50787 inhabitants)
88 Km NE of Pozzuoli (81661 inhabitants)
88 Km N of Cava de' Tirreni (53659 inhabitants)
91 Km N of Castellammare di Stabia (66466 inhabitants)
91 Km N of Salerno (135261 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 0.9 2021-08-10
10:22:33
41.4927 14.6962 10 2021-08-10
10:27:21
Sala Sismica INGV-Roma 93918541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-10 10:22:33 ± 0.1
Latitude 41.4927 ± 0.0063
Longitude 14.6962 ± 0.0096
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 93918541

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 789
Semi-minor axis of confidence ellipse (meter) 626
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 56
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) 79
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) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.09353
Epicentral distance of station farthest from the epicenter (degree) 0.29498
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 93918541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-10 10:27:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PSB1.HHZ. 2021-08-10T10:22:44.59 0.3 undecidable manual S 162 0.2824 50 0.35 69
IV.SGG.HNZ. 2021-08-10T10:22:43.80 0.6 undecidable manual S 246 0.2599 50 0.23 48
IV.PSB1.HHZ. 2021-08-10T10:22:39.50 0.6 undecidable manual P 162 0.2824 50 -0.1 49
IV.TRIV.HHZ. 2021-08-10T10:22:39.87 0.3 positive manual P 338 0.295 50 0.06 73
IV.BSSO.HHZ. 2021-08-10T10:22:38.75 0.3 undecidable manual S 305 0.0935 135 0.39 71
IV.SACR.HHZ. 2021-08-10T10:22:38.61 0.6 undecidable manual S 176 0.0953 134 0.19 49
IV.SGG.HNZ. 2021-08-10T10:22:38.75 0.1 undecidable manual P 246 0.2599 50 -0.47 90
IV.CIGN.HHZ. 2021-08-10T10:22:38.73 0.1 undecidable manual P 44 0.2248 50 0.12 98
IV.GATE.HNZ. 2021-08-10T10:22:37.28 0.1 undecidable manual P 83 0.1619 120 -0.13 99
IV.BSSO.HHZ. 2021-08-10T10:22:36.05 0.1 negative manual P 305 0.0935 135 -0.15 100
IV.SACR.HHZ. 2021-08-10T10:22:36.10 0.1 negative manual P 176 0.0953 134 -0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BSSO.HHE. ML:1 0.00012194062 0.2368 AML other m 2021-08-10T10:22:39.47
IV.BSSO.HHN. ML:1 0.00011459005 0.3392 AML other m 2021-08-10T10:22:42.69
IV.BSSO.HNE. ML:1 0.000120131095 0.2368 AML other m 2021-08-10T10:22:39.47
IV.BSSO.HNN. ML:1 0.00012258109 0.3968 AML other m 2021-08-10T10:22:40.58
IV.SACR.HHE. ML:1.2 0.00018064435 0.2816 AML other m 2021-08-10T10:22:38.68
IV.SACR.HHN. ML:1.1 0.0001639399 0.2624 AML other m 2021-08-10T10:22:38.67
IV.SACR.HNE. ML:2.3 0.0025822075 0.6464 AML other m 2021-08-10T10:22:40.02
IV.SACR.HNN. ML:2.3 0.002343811 0.6528 AML other m 2021-08-10T10:22:40.02
IV.PSB1.HHE. ML:0.7 2.550489E-5 0.3008 AML other m 2021-08-10T10:22:49.75
IV.PSB1.HHN. ML:0.6 1.924574E-5 0.6976 AML other m 2021-08-10T10:22:49.52
IV.TRIV.HHE. ML:0.9 3.6637565E-5 0.2816 AML other m 2021-08-10T10:22:46.80
IV.TRIV.HHN. ML:1 4.4007865E-5 0.3584 AML other m 2021-08-10T10:22:46.12
IV.TRIV.HNE. ML:1 4.4391515E-5 0.3008 AML other m 2021-08-10T10:22:46.66
IV.TRIV.HNN. ML:1.1 5.582716E-5 0.5376 AML other m 2021-08-10T10:22:48.84
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