Earthquake with magnitude of ML 1.5 on date 12-08-2021 and time 05:53:02 (Italy) in region 2 km N San Giuliano del Sannio (CB)

A magnitude ML 1.5 earthquake occured in region: 2 km N San Giuliano del Sannio (CB), on

  • 12-08-2021 03:53:02 (UTC)
  • 12-08-2021 05:53:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.475, 14.637 at 11 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
San Giuliano del Sannio CB 2 1029 1029
Cercepiccola CB 3 681 1710
Vinchiaturo CB 5 3324 5034
Mirabello Sannitico CB 6 2180 7214
Ferrazzano CB 7 3344 10558
Cercemaggiore CB 7 3777 14335
Sepino CB 8 1964 16299
Baranello CB 9 2673 18972
Guardiaregia CB 9 801 19773
Campobasso CB 10 49431 69204
Gildone CB 10 809 70013
Colle d'Anchise CB 11 807 70820
Busso CB 11 1273 72093
Sassinoro BN 11 618 72711
Campochiaro CB 11 646 73357
San Polo Matese CB 12 470 73827
Santa Croce del Sannio BN 13 927 74754
Campodipietra CB 13 2570 77324
Oratino CB 13 1641 78965
Bojano CB 14 8058 87023
Jelsi CB 14 1781 88804
Spinete CB 15 1320 90124
Casalciprano CB 15 564 90688
Morcone BN 15 4932 95620
Ripalimosani CB 15 3114 98734
Toro CB 16 1391 100125
San Giovanni in Galdo CB 16 580 100705
Pietraroja BN 16 545 101250
Castelpagano BN 16 1483 102733
Matrice CB 17 1115 103848
Riccia CB 17 5262 109110
Castropignano CB 17 947 110057
Sant'Elena Sannita IS 18 275 110332
Cusano Mutri BN 19 4091 114423
San Massimo CB 19 855 115278
Montagano CB 19 1086 116364
Circello BN 19 2388 118752

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km NW of Benevento (60091 inhabitants)
51 Km NE of Caserta (76326 inhabitants)
63 Km NE of Acerra (59573 inhabitants)
64 Km N of Avellino (54857 inhabitants)
66 Km NE of Aversa (53047 inhabitants)
66 Km W of San Severo (53905 inhabitants)
67 Km NE of Afragola (65057 inhabitants)
70 Km NE of Casoria (77642 inhabitants)
71 Km NE of Giugliano in Campania (122974 inhabitants)
74 Km NE of Marano di Napoli (59874 inhabitants)
76 Km W of Foggia (151991 inhabitants)
76 Km NE of Portici (55274 inhabitants)
78 Km NE of Napoli (974074 inhabitants)
78 Km NE of Ercolano (53709 inhabitants)
80 Km N of Torre del Greco (86275 inhabitants)
81 Km N of Scafati (50787 inhabitants)
83 Km NE of Pozzuoli (81661 inhabitants)
86 Km N of Cava de' Tirreni (53659 inhabitants)
88 Km N of Castellammare di Stabia (66466 inhabitants)
89 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 1.5 2021-08-12
03:53:02
41.4748 14.6372 11 2021-08-12
04:14:53
Sala Sismica INGV-Roma 93986891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-12 03:53:02 ± 0.11
Latitude 41.4748 ± 0.0063
Longitude 14.6372 ± 0.0096
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 93986891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 852
Semi-minor axis of confidence ellipse (meter) 667
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 242
Circular confidence region, given by single value of horizontal uncertainty (meter) 850
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.6646
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 33
Type of magnitude ML
Reference to an origin 93986891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-12 04:14:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PP3.EHZ. 2021-08-12T03:53:40.50 3.0 negative manual Pg 4.91 0
IV.PTRP.HHZ. 2021-08-12T03:53:30.98 3.0 positive manual P 3.88 0
IX.MNT3.EHZ.02 2021-08-12T03:53:27.03 3.0 undecidable manual S 0.19 0
IV.SLCN.HHZ. 2021-08-12T03:53:24.29 3.0 undecidable manual P -1.28 0
IV.LPEL.HHN. 2021-08-12T03:53:24.69 0.6 undecidable manual S 330 0.6646 50 0.25 43
IV.RNI2.HHZ. 2021-08-12T03:53:19.28 3.0 undecidable manual S 0.72 0
IV.PLTA.HNZ. 2021-08-12T03:53:17.00 3.0 undecidable manual P 0
IV.MOCO.HHZ. 2021-08-12T03:53:16.99 0.6 undecidable manual S 105 0.4038 50 0.26 45
IV.LPEL.HHN. 2021-08-12T03:53:14.22 0.1 undecidable manual P 330 0.6646 50 -0.83 70
IV.VITU.HHZ. 2021-08-12T03:53:13.77 0.6 undecidable manual S 181 0.2914 50 0.38 45
IV.PSB1.HHZ. 2021-08-12T03:53:12.75 0.6 undecidable manual S 153 0.2833 50 -0.39 45
IV.CIGN.HHZ. 2021-08-12T03:53:12.84 0.6 undecidable manual S 48 0.2689 50 0.11 47
IV.MOCO.HHZ. 2021-08-12T03:53:11.23 0.3 undecidable manual P 105 0.4038 50 0.63 61
IV.GATE.HHZ. 2021-08-12T03:53:11.43 0.6 undecidable manual S 79 0.2077 50 0.51 44
IV.SGG.HHZ. 2021-08-12T03:53:11.68 0.6 undecidable manual S 246 0.2122 50 0.62 42
IV.MELA.HHZ. 2021-08-12T03:53:10.07 3.0 positive manual P -0.41 0
IV.MIDA.HHZ. 2021-08-12T03:53:09.24 3.0 positive manual P -0.23 0
IV.VAGA.HHZ. 2021-08-12T03:53:09.16 3.0 positive manual Pn -0.08 0
IV.TST01.HHZ. 2021-08-12T03:53:09.58 3.0 positive manual P 0.33 0
IV.VITU.HHZ. 2021-08-12T03:53:08.88 0.6 positive manual P 181 0.2914 50 0.21 46
IV.PSB1.HHZ. 2021-08-12T03:53:08.03 0.3 undecidable manual P 153 0.2833 50 -0.5 65
IV.TRIV.HHZ. 2021-08-12T03:53:08.45 3.0 undecidable manual P 0.01 0
IV.SGG.HHZ. 2021-08-12T03:53:07.24 0.3 undecidable manual P 246 0.2122 50 -0.08 72
IV.SACR.HHZ. 2021-08-12T03:53:07.43 0.3 undecidable manual S 146 0.0926 136 0.05 75
IV.CIGN.HHZ. 2021-08-12T03:53:07.96 0.3 undecidable manual P 48 0.2689 50 -0.33 68
IV.GATE.HHZ. 2021-08-12T03:53:07.11 0.1 undecidable manual P 79 0.2077 50 -0.14 95
IV.BSSO.HHZ. 2021-08-12T03:53:07.49 0.3 undecidable manual S 336 0.0782 141 0.48 68
IV.BSSO.HHZ. 2021-08-12T03:53:04.96 0.1 negative manual P 336 0.0782 141 -0.03 100
IV.SACR.HHZ. 2021-08-12T03:53:04.96 0.1 negative manual P 146 0.0926 136 -0.24 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SACR.HHE. ML:1.6 0.000534 0.8 AML other m 2021-08-12T03:53:07.55
IV.SACR.HNE. ML:1.6 0.0005085 0.82 AML other m 2021-08-12T03:53:07.96
IV.BSSO.HHE. ML:1.7 0.0006395 0.38 AML other m 2021-08-12T03:53:08.21
IV.BSSO.HNE. ML:2 0.00141 1.06 AML other m 2021-08-12T03:53:08.22
IV.BSSO.HNN. ML:2 0.001232 1.16 AML other m 2021-08-12T03:53:08.27
IV.BSSO.HHN. ML:1.6 0.0005185 0.34 AML other m 2021-08-12T03:53:08.29
IV.SACR.HHN. ML:1.7 0.000565 0.42 AML other m 2021-08-12T03:53:08.55
IV.SACR.HNN. ML:1.7 0.000574 0.42 AML other m 2021-08-12T03:53:08.56
IV.SGG.HHN. ML:1.4 0.000154 0.58 AML other m 2021-08-12T03:53:12.99
IV.GATE.HHN. ML:1.5 0.0001905 0.48 AML other m 2021-08-12T03:53:14.08
IV.GATE.HNE. ML:1.7 0.000349 0.54 AML other m 2021-08-12T03:53:14.53
IV.GATE.HHE. ML:1.8 0.0003555 0.54 AML other m 2021-08-12T03:53:14.54
IV.GATE.HNN. ML:1.5 0.0001875 1.38 AML other m 2021-08-12T03:53:14.08
IV.TRIV.HHN. ML:1.4 0.000114 0.62 AML other m 2021-08-12T03:53:15.34
IV.VITU.HHN. ML:1.6 0.000192 0.64 AML other m 2021-08-12T03:53:15.99
IV.TST01.HHE. ML:1 4.24E-5 0.64 AML other m 2021-08-12T03:53:16.50
IV.VITU.HHE. ML:1.7 0.000209 1.36 AML other m 2021-08-12T03:53:17.88
IV.TST01.HHN. ML:1.1 5.015E-5 0.46 AML other m 2021-08-12T03:53:17.14
IV.MELA.HHE. ML:1.5 9.3696725E-5 1.04 AML other m 2021-08-12T03:53:18.94
IV.MELA.HHN. ML:1.8 0.0001545 0.34 AML other m 2021-08-12T03:53:17.70
IV.VAGA.HHE. ML:1.3 8.48E-5 1.38 AML other m 2021-08-12T03:53:17.07
IV.CIGN.HHN. ML:1.3 9.385E-5 0.56 AML other m 2021-08-12T03:53:18.52
IV.RNI2.HHE. ML:1.2 4.46E-5 0.68 AML other m 2021-08-12T03:53:19.44
IV.MIDA.HHE. ML:1.4 0.0001063 0.32 AML other m 2021-08-12T03:53:19.24
IV.SGG.HHE. ML:1.2 0.000105823225 0.2016 AML other m 2021-08-12T03:53:12.95
IV.TRIV.HHE. ML:1.4 9.535E-5 0.36 AML other m 2021-08-12T03:53:19.37
IV.VAGA.HHN. ML:1.7 0.0002175 0.24 AML other m 2021-08-12T03:53:19.83
IV.MIDA.HHN. ML:1.5 0.0001195 0.46 AML other m 2021-08-12T03:53:20.31
IV.RNI2.HHN. ML:1.5 9.39E-5 1.52 AML other m 2021-08-12T03:53:21.07
IV.PSB1.HHE. ML:1.2 7.89E-5 0.58 AML other m 2021-08-12T03:53:22.54
IV.CIGN.HHE. ML:1.2 8.575E-5 1.08 AML other m 2021-08-12T03:53:22.26
IX.MNT3.EHE.02 ML:2.8 0.000943 0.06 AML other m 2021-08-12T03:53:29.40
IX.MNT3.EHN.02 ML:2.6 0.000651 0.56 AML other m 2021-08-12T03:53:30.40
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