Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 13-08-2021 and time 04:44:00 (Italy) in region 2 km SW Sassinoro (BN)

A magnitude ML 1.3 earthquake occured in region: 2 km SW Sassinoro (BN), on

  • 13-08-2021 02:44:00 (UTC)
  • 13-08-2021 04:44:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.3650, 14.6420 at 10 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
Sassinoro BN 2 618 618
Morcone BN 3 4932 5550
Sepino CB 5 1964 7514
Pietraroja BN 8 545 8059
Santa Croce del Sannio BN 8 927 8986
Pontelandolfo BN 9 2167 11153
San Giuliano del Sannio CB 10 1029 12182
Cercepiccola CB 11 681 12863
Cerreto Sannita BN 11 3940 16803
Cusano Mutri BN 11 4091 20894
Campolattaro BN 11 1072 21966
San Lupo BN 12 801 22767
Guardiaregia CB 12 801 23568
Casalduni BN 12 1378 24946
Guardia Sanframondi BN 13 5078 30024
Cercemaggiore CB 13 3777 33801
San Lorenzo Maggiore BN 13 2154 35955
San Lorenzello BN 13 2227 38182
Circello BN 14 2388 40570
Castelpagano BN 15 1483 42053
Campochiaro CB 15 646 42699
Vinchiaturo CB 15 3324 46023
Colle Sannita BN 16 2431 48454
San Polo Matese CB 16 470 48924
Castelvenere BN 16 2562 51486
Faicchio BN 17 3634 55120
Fragneto Monforte BN 17 1840 56960
Fragneto l'Abate BN 17 1049 58009
Mirabello Sannitico CB 17 2180 60189
Reino BN 17 1210 61399
Ponte BN 17 2580 63979
Gioia Sannitica CE 18 3638 67617
Gildone CB 18 809 68426
Telese Terme BN 19 7486 75912
Paupisi BN 19 1633 77545
Ferrazzano CB 19 3344 80889
San Salvatore Telesino BN 19 3999 84888
Colle d'Anchise CB 19 807 85695
Bojano CB 19 8058 93753
Baranello CB 19 2673 96426

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NW of Benevento (60091 inhabitants)
41 Km NE of Caserta (76326 inhabitants)
52 Km N of Avellino (54857 inhabitants)
52 Km NE of Acerra (59573 inhabitants)
56 Km NE of Afragola (65057 inhabitants)
57 Km NE of Aversa (53047 inhabitants)
59 Km NE of Casoria (77642 inhabitants)
61 Km NE of Giugliano in Campania (122974 inhabitants)
64 Km NE of Marano di Napoli (59874 inhabitants)
65 Km NE of Portici (55274 inhabitants)
67 Km NE of Ercolano (53709 inhabitants)
67 Km NE of Napoli (974074 inhabitants)
68 Km NE of Torre del Greco (86275 inhabitants)
69 Km N of Scafati (50787 inhabitants)
71 Km SW of San Severo (53905 inhabitants)
74 Km NE of Pozzuoli (81661 inhabitants)
74 Km N of Cava de' Tirreni (53659 inhabitants)
76 Km N of Castellammare di Stabia (66466 inhabitants)
76 Km W of Foggia (151991 inhabitants)
77 Km N of Salerno (135261 inhabitants)
89 Km NW of Battipaglia (50786 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 1.3 2021-08-13
02:44:00		 41.3652 14.642 11 2021-12-29
11:12:52		 Bollettino Sismico Italiano INGV 97515901
Reviewed
Rev100 		ML 1.3 2021-08-13
02:44:00		 41.3607 14.6527 10 2021-08-13
02:50:27		 Sala Sismica INGV-Roma 94051771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-13 02:44:00 ± 0.09
Latitude 41.3652 ± 0.0054
Longitude 14.6420 ± 0.0072
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 97515901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 576
Semi-minor axis of confidence ellipse (meter) 561
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 168
Circular confidence region, given by single value of horizontal uncertainty (meter) 580.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 23
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.49732
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 97515901
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-11-17 10:45:48

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 94051771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-13 02:50:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VENT.EHZ. 2021-08-13T02:44:34.46 3.0 undecidable manual S -3.36 0
IV.MELA.HHZ. 2021-08-13T02:44:18.28 0.6 undecidable manual S 47 55.2003 50 0.19 45
IV.MIDA.HHZ. 2021-08-13T02:44:15.05 0.6 undecidable manual S 314 44.5221 50 -0.17 46
IV.PIGN.HHZ. 2021-08-13T02:44:15.17 0.3 undecidable manual S 245 42.624 50 0.44 66
IV.VAGA.HHZ. 2021-08-13T02:44:13.10 0.6 undecidable manual S 279 34.3434 50 0.58 43
IV.MELA.HHZ. 2021-08-13T02:44:10.10 0.3 undecidable manual P 47 55.2003 50 -0.66 59
IV.MOCO.HHZ. 2021-08-13T02:44:09.16 0.3 undecidable manual P 89 42.9237 50 0.29 68
IV.PSB1.HHZ. 2021-08-13T02:44:09.91 0.6 undecidable manual S 138 21.0678 116 0.97 37
IV.SGG.HHZ. 2021-08-13T02:44:09.65 0.3 undecidable manual S 276 21.9669 50 0.44 68
IV.TRIV.HHZ. 2021-08-13T02:44:09.02 0.3 undecidable manual P 350 45.2214 50 -0.19 69
IV.BSSO.HHZ. 2021-08-13T02:44:09.26 0.3 undecidable manual S 349 20.4684 117 0.51 67
IV.PIGN.HHZ. 2021-08-13T02:44:08.86 0.3 undecidable manual P 245 42.624 50 0.04 72
IV.VITU.HHZ. 2021-08-13T02:44:08.56 0.3 undecidable manual S 183 20.1687 118 -0.1 74
IV.MIDA.HHZ. 2021-08-13T02:44:08.30 0.3 undecidable manual P 314 44.5221 50 -0.81 57
IV.VAGA.HHZ. 2021-08-13T02:44:07.52 0.3 undecidable manual P 279 34.3434 50 -0.03 73
IV.GATE.HHZ. 2021-08-13T02:44:06.95 0.3 undecidable manual P 54 27.6501 50 0.43 68
IV.SACR.HHZ. 2021-08-13T02:44:05.14 0.3 undecidable manual S 56 6.3936 149 0.11 75
IV.BSSO.HHZ. 2021-08-13T02:44:05.27 0.1 negative manual P 349 20.4684 117 -0.1 98
IV.PTRJ.HHZ. 2021-08-13T02:44:05.70 0.3 undecidable manual S 269 9.3795 138 0.04 75
IV.PSB1.HHZ. 2021-08-13T02:44:05.39 0.3 undecidable manual P 138 21.0678 116 -0.09 74
IV.SGG.HHZ. 2021-08-13T02:44:05.30 0.1 undecidable manual P 276 21.9669 50 -0.34 93
IV.VITU.HHZ. 2021-08-13T02:44:04.92 0.1 undecidable manual P 183 20.1687 118 -0.4 92
IV.SACR.HHZ. 2021-08-13T02:44:03.09 0.1 undecidable manual P 56 6.3936 149 -0.14 100
IV.PTRJ.HHZ. 2021-08-13T02:44:03.46 0.3 undecidable manual P 269 9.3795 138 -0.13 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SACR.HHN. ML:1.2 0.0002285 0.18 AML other m 2021-08-13T02:44:05.90
IV.SACR.HHE. ML:1.4 0.0003555 1.54 AML other m 2021-08-13T02:44:07.97
IV.BSSO.HHE. ML:1.2 0.0001255 0.48 AML other m 2021-08-13T02:44:09.58
IV.VITU.HHE. ML:1.5 0.00025 0.52 AML other m 2021-08-13T02:44:10.45
IV.BSSO.HHN. ML:1.2 0.00010059999999999999 0.3 AML other m 2021-08-13T02:44:10.37
IV.VITU.HHN. ML:1.6 0.00029200000000000005 0.64 AML other m 2021-08-13T02:44:12.47
IV.SGG.HHE. ML:1.6 0.00023349999999999998 0.46 AML other m 2021-08-13T02:44:12.77
IV.SGG.HHN. ML:1.5 0.0002235 0.5 AML other m 2021-08-13T02:44:13.63
IV.GATE.HHN. ML:1.3 0.0001007 0.42 AML other m 2021-08-13T02:44:14.02
IV.GATE.HHE. ML:1.1 0.0000648 0.26 AML other m 2021-08-13T02:44:14.51
IV.PIGN.HHE. ML:1.0 0.00003229999999999999 0.4 AML other m 2021-08-13T02:44:15.40
IV.MIDA.HHE. ML:1.1 0.000039649999999999995 1.08 AML other m 2021-08-13T02:44:16.68
IV.VAGA.HHE. ML:1.4 0.00011350000000000001 0.38 AML other m 2021-08-13T02:44:16.29
IV.MIDA.HHN. ML:1.2 0.00005225 0.24 AML other m 2021-08-13T02:44:16.60
IV.PIGN.HHN. ML:1.0 0.00002835 1.3 AML other m 2021-08-13T02:44:17.01
IV.TRIV.HHE. ML:1.0 0.00003245 0.8 AML other m 2021-08-13T02:44:17.59
IV.TRIV.HHN. ML:1.0 0.00002875 0.52 AML other m 2021-08-13T02:44:18.67
IV.MELA.HHE. ML:1.4 0.000058099999999999996 0.3 AML other m 2021-08-13T02:44:19.16
IV.MELA.HHN. ML:1.4 0.00006575 0.12 AML other m 2021-08-13T02:44:19.37
IV.VAGA.HHN. ML:1.7 0.0002195 0.46 AML other m 2021-08-13T02:44:20.00
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