Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 28-08-2021 and time 19:46:06 (UTC) in region 3 km NE Cercepiccola (CB)

A magnitude ML 1.4 earthquake occured in region: 3 km NE Cercepiccola (CB), on

  • 28-08-2021 19:46:06 (UTC)
  • 28-08-2021 21:46:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.4870, 14.6800 at 11 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Cercepiccola CB 3 681 681
Mirabello Sannitico CB 3 2180 2861
Cercemaggiore CB 5 3777 6638
San Giuliano del Sannio CB 5 1029 7667
Ferrazzano CB 5 3344 11011
Gildone CB 6 809 11820
Vinchiaturo CB 8 3324 15144
Campobasso CB 8 49431 64575
Campodipietra CB 10 2570 67145
Sepino CB 10 1964 69109
Jelsi CB 10 1781 70890
Baranello CB 11 2673 73563
Santa Croce del Sannio BN 12 927 74490
Toro CB 12 1391 75881
Sassinoro BN 12 618 76499
Busso CB 12 1273 77772
San Giovanni in Galdo CB 13 580 78352
Guardiaregia CB 13 801 79153
Riccia CB 13 5262 84415
Oratino CB 14 1641 86056
Colle d'Anchise CB 14 807 86863
Ripalimosani CB 14 3114 89977
Castelpagano BN 14 1483 91460
Matrice CB 14 1115 92575
Campochiaro CB 15 646 93221
San Polo Matese CB 16 470 93691
Morcone BN 16 4932 98623
Casalciprano CB 17 564 99187
Spinete CB 17 1320 100507
Bojano CB 17 8058 108565
Monacilioni CB 18 523 109088
Castropignano CB 18 947 110035
Montagano CB 18 1086 111121
Circello BN 18 2388 113509
Campolieto CB 18 839 114348
Colle Sannita BN 19 2431 116779
Pietraroja BN 19 545 117324
Pietracatella CB 19 1375 118699
Gambatesa CB 20 1464 120163

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km N of Benevento (60091 inhabitants)
54 Km NE of Caserta (76326 inhabitants)
62 Km W of San Severo (53905 inhabitants)
64 Km N of Avellino (54857 inhabitants)
65 Km NE of Acerra (59573 inhabitants)
69 Km NE of Aversa (53047 inhabitants)
70 Km NE of Afragola (65057 inhabitants)
72 Km W of Foggia (151991 inhabitants)
72 Km NE of Casoria (77642 inhabitants)
74 Km NE of Giugliano in Campania (122974 inhabitants)
77 Km NE of Marano di Napoli (59874 inhabitants)
79 Km NE of Portici (55274 inhabitants)
80 Km NE of Ercolano (53709 inhabitants)
80 Km NE of Napoli (974074 inhabitants)
82 Km NE of Torre del Greco (86275 inhabitants)
83 Km N of Scafati (50787 inhabitants)
87 Km NE of Pozzuoli (81661 inhabitants)
87 Km N of Cava de' Tirreni (53659 inhabitants)
90 Km N of Castellammare di Stabia (66466 inhabitants)
90 Km N of Salerno (135261 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.4 2021-08-28
19:46:06		 41.4867 14.6805 11 2021-12-29
11:12:52		 Bollettino Sismico Italiano INGV 98140581
Reviewed
Rev100 		ML 1.4 2021-08-28
19:46:06		 41.4922 14.687 10 2021-08-28
19:53:36		 Sala Sismica INGV-Roma 94763661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-28 19:46:06 ± 0.15
Latitude 41.4867 ± 0.0081
Longitude 14.6805 ± 0.0132
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 98140581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1251
Semi-minor axis of confidence ellipse (meter) 606
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 59
Circular confidence region, given by single value of horizontal uncertainty (meter) 1250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 114
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.08813
Epicentral distance of station farthest from the epicenter (degree) 0.67179
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 94763661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-28 19:53:36

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 98140581
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-12-04 19:13:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LPEL.HHZ. 2021-08-28T19:46:28.75 1.0 undecidable manual S 327 74.5698 50 -0.32 21
IV.RNI2.HHZ. 2021-08-28T19:46:23.52 0.6 undecidable manual S 299 50.0166 50 1.01 35
IV.VAGA.HHZ. 2021-08-28T19:46:20.16 0.6 undecidable manual S 258 37.9287 50 0.85 38
IV.MIDA.HHZ. 2021-08-28T19:46:19.95 0.6 undecidable manual S 296 39.3273 50 0.27 46
IV.LPEL.HHZ. 2021-08-28T19:46:18.81 0.6 undecidable manual P 327 74.5698 50 -0.8 35
IV.VITU.HHZ. 2021-08-28T19:46:18.44 0.6 undecidable manual S 187 33.9438 50 0.21 47
IV.PSB1.HNE. 2021-08-28T19:46:17.92 0.6 undecidable manual S 160 31.1466 50 0.43 45
IV.RNI2.HHZ. 2021-08-28T19:46:15.49 0.3 undecidable manual P 299 50.0166 50 -0.33 65
IV.PTRJ.HHZ. 2021-08-28T19:46:14.56 0.6 undecidable manual S 223 18.5703 50 0.44 45
IV.TST01.HHE. 2021-08-28T19:46:14.07 0.3 undecidable manual P 320 37.9287 50 0.1 71
IV.VITU.HHZ. 2021-08-28T19:46:13.10 0.3 undecidable manual P 187 33.9438 50 -0.25 68
IV.MIDA.HHZ. 2021-08-28T19:46:13.68 0.3 undecidable manual P 296 39.3273 50 -0.51 64
IV.VAGA.HHZ. 2021-08-28T19:46:13.72 0.3 undecidable manual P 258 37.9287 50 -0.25 68
IV.PSB1.HNE. 2021-08-28T19:46:12.69 0.3 undecidable manual P 160 31.1466 50 -0.24 92
IV.BSSO.HHZ. 2021-08-28T19:46:12.18 0.6 undecidable manual S 313 9.7791 138 0.4 45
IV.GATE.HHZ. 2021-08-28T19:46:11.93 0.3 undecidable manual P 81 19.2696 50 0.83 58
IV.SACR.HHZ. 2021-08-28T19:46:11.91 0.6 undecidable manual S 168 10.0788 137 0.05 49
IV.PTRJ.HHZ. 2021-08-28T19:46:10.41 0.3 undecidable manual P 223 18.5703 50 -0.57 66
IV.BSSO.HHZ. 2021-08-28T19:46:09.53 0.1 negative manual P 313 9.7791 138 -0.09 100
IV.SACR.HHZ. 2021-08-28T19:46:09.56 0.1 negative manual P 168 10.0788 137 -0.11 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SACR.HNN. ML:1.4 0.000337 0.28 AML other m 2021-08-28T19:46:12.14
IV.SACR.HHE. ML:1.5 0.0003485 0.76 AML other m 2021-08-28T19:46:12.14
IV.SACR.HHN. ML:1.4 0.000307 0.26 AML other m 2021-08-28T19:46:12.14
IV.SACR.HNE. ML:1.4 0.0003 0.76 AML other m 2021-08-28T19:46:12.15
IV.BSSO.HHE. ML:1.5 0.00036150000000000006 1.1 AML other m 2021-08-28T19:46:12.96
IV.BSSO.HNE. ML:1.5 0.00034950000000000004 1.1 AML other m 2021-08-28T19:46:12.96
IV.BSSO.HNN. ML:1.3 0.0002215 0.38 AML other m 2021-08-28T19:46:14.27
IV.BSSO.HHN. ML:1.3 0.00023899999999999998 0.38 AML other m 2021-08-28T19:46:14.27
IV.VAGA.HHE. ML:1.1 0.000042999999999999995 0.6 AML other m 2021-08-28T19:46:22.61
IV.VAGA.HHN. ML:1.5 0.00011499999999999999 0.24 AML other m 2021-08-28T19:46:24.36
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