Earthquake with magnitude of ML 1.0 on date 14-08-2021 and time 01:45:53 (Italy) in region 4 km W Ferrazzano (CB)

A magnitude ML 1.0 earthquake occured in region: 4 km W Ferrazzano (CB), on

  • 13-08-2021 23:45:53 (UTC)
  • 14-08-2021 01:45:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.533, 14.618 at 12 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
Ferrazzano CB 4 3344 3344
Campobasso CB 5 49431 52775
Baranello CB 5 2673 55448
Mirabello Sannitico CB 5 2180 57628
Vinchiaturo CB 5 3324 60952
Busso CB 5 1273 62225
Oratino CB 7 1641 63866
Colle d'Anchise CB 9 807 64673
San Giuliano del Sannio CB 9 1029 65702
Cercepiccola CB 9 681 66383
Casalciprano CB 9 564 66947
Ripalimosani CB 10 3114 70061
Gildone CB 11 809 70870
Castropignano CB 11 947 71817
Spinete CB 11 1320 73137
Campodipietra CB 11 2570 75707
Cercemaggiore CB 12 3777 79484
Matrice CB 12 1115 80599
San Giovanni in Galdo CB 13 580 81179
Guardiaregia CB 13 801 81980
Campochiaro CB 13 646 82626
Sant'Elena Sannita IS 13 275 82901
San Polo Matese CB 13 470 83371
Toro CB 13 1391 84762
Bojano CB 13 8058 92820
Montagano CB 14 1086 93906
Sepino CB 14 1964 95870
Torella del Sannio CB 15 795 96665
Jelsi CB 15 1781 98446
Molise CB 15 167 98613
Frosolone IS 16 3170 101783
Limosano CB 16 768 102551
Fossalto CB 17 1345 103896
Campolieto CB 17 839 104735
San Massimo CB 18 855 105590
Sassinoro BN 18 618 106208
Sant'Angelo Limosano CB 18 352 106560
Macchiagodena IS 18 1854 108414
Monacilioni CB 18 523 108937
Santa Croce del Sannio BN 19 927 109864
Pietracupa CB 19 215 110079
Cantalupo nel Sannio IS 19 739 110818
Riccia CB 19 5262 116080
Petrella Tifernina CB 19 1170 117250
Duronia CB 19 405 117655

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km N of Benevento (60091 inhabitants)
56 Km NE of Caserta (76326 inhabitants)
66 Km W of San Severo (53905 inhabitants)
68 Km NE of Acerra (59573 inhabitants)
70 Km N of Avellino (54857 inhabitants)
71 Km NE of Aversa (53047 inhabitants)
73 Km NE of Afragola (65057 inhabitants)
75 Km NE of Casoria (77642 inhabitants)
76 Km NE of Giugliano in Campania (122974 inhabitants)
78 Km W of Foggia (151991 inhabitants)
79 Km NE of Marano di Napoli (59874 inhabitants)
82 Km N of Portici (55274 inhabitants)
83 Km NE of Napoli (974074 inhabitants)
84 Km N of Ercolano (53709 inhabitants)
86 Km N of Torre del Greco (86275 inhabitants)
88 Km N of Scafati (50787 inhabitants)
88 Km NE of Pozzuoli (81661 inhabitants)
93 Km N of Cava de' Tirreni (53659 inhabitants)
94 Km N of Castellammare di Stabia (66466 inhabitants)
96 Km N of Salerno (135261 inhabitants)
98 Km SE of Chieti (51815 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 1.0 2021-08-13
23:45:53
41.5328 14.6185 12 2021-08-13
23:51:12
Sala Sismica INGV-Roma 94108421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-13 23:45:53 ± 0.14
Latitude 41.5328 ± 0.0099
Longitude 14.6185 ± 0.0108
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 94108421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 977
Semi-minor axis of confidence ellipse (meter) 777
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 206
Circular confidence region, given by single value of horizontal uncertainty (meter) 980
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 94
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 10
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
Epicentral distance of station farthest from the epicenter (degree) 0.31117
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 94108421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-13 23:51:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SGRT.HHZ. 2021-08-13T23:46:24.66 3.0 undecidable manual S 0.07 0
IV.TRIV.HHZ. 2021-08-13T23:46:04.20 0.6 undecidable manual S 348 0.2392 92 0.83 39
IV.CIGN.HHZ. 2021-08-13T23:46:03.56 0.3 undecidable manual S 60 0.2464 92 -0.01 73
IV.SACR.HHZ. 2021-08-13T23:46:01.00 0.3 undecidable manual S 154 0.1502 97 0.25 70
IV.VAGA.HHZ. 2021-08-13T23:46:00.65 0.3 undecidable manual P 248 0.3112 91 0.09 70
IV.MIDA.HHZ. 2021-08-13T23:45:59.93 0.1 undecidable manual P 292 0.2932 91 -0.34 91
IV.TRIV.HHZ. 2021-08-13T23:45:59.36 0.3 undecidable manual P 348 0.2392 92 0.02 73
IV.CIGN.HHZ. 2021-08-13T23:45:59.39 0.3 undecidable manual P 60 0.2464 92 -0.07 72
IV.SACR.HHZ. 2021-08-13T23:45:57.68 0.3 positive manual P 154 0.1502 97 -0.14 74
IV.BSSO.HHZ. 2021-08-13T23:45:57.90 0.3 undecidable manual S 306 0.0225 164 0.01 76
IV.BSSO.HHZ. 2021-08-13T23:45:56.05 0.1 negative manual P 306 0.0225 164 -0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BSSO.HNN. ML:1.4 0.000351 0.7 AML other m 2021-08-13T23:45:58.12
IV.BSSO.HHN. ML:1.4 0.00037 0.68 AML other m 2021-08-13T23:45:58.12
IV.BSSO.HHE. ML:1.3 0.000307 1.08 AML other m 2021-08-13T23:45:58.13
IV.BSSO.HNE. ML:1.2 0.000278 1.06 AML other m 2021-08-13T23:45:58.14
IV.SACR.HHN. ML:0.9 7.195E-5 0.24 AML other m 2021-08-13T23:46:02.61
IV.SACR.HHE. ML:0.7 4.725E-5 0.96 AML other m 2021-08-13T23:46:03.59
IV.TRIV.HHN. ML:0.9 4.195E-5 0.4 AML other m 2021-08-13T23:46:04.62
IV.TRIV.HHE. ML:0.9 3.795E-5 0.32 AML other m 2021-08-13T23:46:05.20
IV.MIDA.HHE. ML:0.7 2.2E-5 1.44 AML other m 2021-08-13T23:46:06.13
IV.MIDA.HHN. ML:0.8 2.385E-5 0.64 AML other m 2021-08-13T23:46:06.66
IV.VAGA.HHE. ML:0.6 1.59E-5 1.12 AML other m 2021-08-13T23:46:08.74
IV.VAGA.HHN. ML:0.9 3.655E-5 0.98 AML other m 2021-08-13T23:46:12.35
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