Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 28-09-2021 and time 06:02:55 (Italy) in region 1 km SE Pontelandolfo (BN)

A magnitude ML 1.1 earthquake occured in region: 1 km SE Pontelandolfo (BN), on

  • 28-09-2021 04:02:55 (UTC)
  • 28-09-2021 06:02:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.2800, 14.7000 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
Pontelandolfo BN 1 2167 2167
Casalduni BN 2 1378 3545
Campolattaro BN 3 1072 4617
San Lupo BN 6 801 5418
Fragneto Monforte BN 7 1840 7258
San Lorenzo Maggiore BN 7 2154 9412
Fragneto l'Abate BN 7 1049 10461
Ponte BN 7 2580 13041
Morcone BN 7 4932 17973
Guardia Sanframondi BN 9 5078 23051
Paupisi BN 10 1633 24684
Reino BN 10 1210 25894
Torrecuso BN 11 3407 29301
Pesco Sannita BN 11 1972 31273
Sassinoro BN 11 618 31891
Cerreto Sannita BN 12 3940 35831
Santa Croce del Sannio BN 12 927 36758
Circello BN 13 2388 39146
Vitulano BN 13 2944 42090
San Lorenzello BN 13 2227 44317
Castelvenere BN 14 2562 46879
Foglianise BN 14 3385 50264
Pietraroja BN 15 545 50809
Colle Sannita BN 15 2431 53240
Pago Veiano BN 15 2406 55646
Cautano BN 15 2044 57690
San Marco dei Cavoti BN 15 3371 61061
Castelpoto BN 15 1254 62315
Pietrelcina BN 16 3114 65429
Solopaca BN 16 3820 69249
Telese Terme BN 16 7486 76735
Sepino CB 16 1964 78699
Castelpagano BN 16 1483 80182
Campoli del Monte Taburno BN 17 1546 81728
Cusano Mutri BN 17 4091 85819
Molinara BN 18 1618 87437
San Salvatore Telesino BN 18 3999 91436
Tocco Caudio BN 18 1508 92944
Benevento BN 18 60091 153035
San Giorgio La Molara BN 18 2994 156029
Faicchio BN 18 3634 159663
Frasso Telesino BN 20 2318 161981
Paduli BN 20 3978 165959

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NW of Benevento (60091 inhabitants)
38 Km NE of Caserta (76326 inhabitants)
41 Km N of Avellino (54857 inhabitants)
46 Km NE of Acerra (59573 inhabitants)
51 Km NE of Afragola (65057 inhabitants)
54 Km NE of Aversa (53047 inhabitants)
54 Km NE of Casoria (77642 inhabitants)
57 Km NE of Giugliano in Campania (122974 inhabitants)
58 Km NE of Portici (55274 inhabitants)
60 Km NE of Marano di Napoli (59874 inhabitants)
60 Km NE of Ercolano (53709 inhabitants)
61 Km N of Scafati (50787 inhabitants)
62 Km NE of Torre del Greco (86275 inhabitants)
62 Km NE of Napoli (974074 inhabitants)
64 Km N of Cava de' Tirreni (53659 inhabitants)
67 Km N of Salerno (135261 inhabitants)
68 Km N of Castellammare di Stabia (66466 inhabitants)
70 Km NE of Pozzuoli (81661 inhabitants)
73 Km SW of San Severo (53905 inhabitants)
73 Km W of Foggia (151991 inhabitants)
78 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 1.1 2021-09-28
04:02:55		 41.2802 14.7003 11 2022-03-30
13:04:08		 Bollettino Sismico Italiano INGV 96204591
Reviewed
Rev100 		ML 1.1 2021-09-28
04:02:54		 41.2632 14.729 11 2021-09-28
04:24:12		 Sala Sismica INGV-Roma 95972901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-28 04:02:55 ± 0.12
Latitude 41.2802 ± 0.0081
Longitude 14.7003 ± 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 96204591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1105
Semi-minor axis of confidence ellipse (meter) 843
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 83
Circular confidence region, given by single value of horizontal uncertainty (meter) 1100.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 122
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
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) 0.10072
Epicentral distance of station farthest from the epicenter (degree) 0.37502
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 96204591
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-08 13:43:14

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 95972901
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-28 04:24:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VAGA.HHZ. 2021-09-28T04:03:09.55 0.6 undecidable manual S 291 41.625 50 0.71 42
IV.VAGA.HHZ. 2021-09-28T04:03:03.34 0.1 undecidable manual P 291 41.625 50 0.27 96
IV.BSSO.HHZ. 2021-09-28T04:03:01.44 0.3 undecidable manual P 343 30.8469 50 0.04 77
IV.PSB1.HHZ. 2021-09-28T04:03:01.31 0.3 undecidable manual S 124 11.1777 134 0.74 66
IV.SGG.HHZ. 2021-09-28T04:03:00.88 0.3 undecidable manual P 294 29.2485 50 -0.28 73
IV.SACR.HHZ. 2021-09-28T04:03:00.89 0.6 undecidable manual S 2 12.9759 130 -0.17 52
IV.PAOL.HHZ. 2021-09-28T04:03:00.99 0.6 undecidable manual P 202 29.748 50 -0.25 49
IV.MRB1.HNZ. 2021-09-28T04:03:00.81 0.3 undecidable manual P 128 28.3494 50 -0.22 75
IV.VITU.HHZ. 2021-09-28T04:03:00.99 0.6 undecidable manual S 209 12.2766 131 0.14 52
IV.PSB1.HHZ. 2021-09-28T04:02:58.12 0.3 undecidable manual P 124 11.1777 134 -0.18 77
IV.VITU.HHZ. 2021-09-28T04:02:58.14 0.1 undecidable manual P 209 12.2766 131 -0.32 100
IV.SACR.HHZ. 2021-09-28T04:02:58.46 0.3 undecidable manual P 2 12.9759 130 -0.12 78
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VITU.HHE. ML:1.4 0.00029749999999999997 0.38 AML other m 2021-09-28T04:03:01.80
IV.VITU.HHN. ML:1.3 0.00020500000000000002 1.34 AML other m 2021-09-28T04:03:02.76
IV.SACR.HHE. ML:0.9 0.00009095 1.18 AML other m 2021-09-28T04:03:03.85
IV.SACR.HNN. ML:1.0 0.0000949 0.9 AML other m 2021-09-28T04:03:04.19
IV.SACR.HHN. ML:0.9 0.0000849 0.9 AML other m 2021-09-28T04:03:04.19
IV.SACR.HNE. ML:2.1 0.0013165 1.2 AML other m 2021-09-28T04:03:06.11
IV.BSSO.HHE. ML:1.2 0.00006470000000000001 0.74 AML other m 2021-09-28T04:03:07.29
IV.SGG.HHE. ML:1.0 0.0000519 0.52 AML other m 2021-09-28T04:03:08.23
IV.VAGA.HHE. ML:0.8 0.00002195 0.5 AML other m 2021-09-28T04:03:14.62
IV.VAGA.HHN. ML:1.2 0.00005215 0.42 AML other m 2021-09-28T04:03:14.57
IV.SGG.HHN. ML:1.0 0.000047149999999999994 0.42 AML other m 2021-09-28T04:03:16.72
IV.BSSO.HHN. ML:0.9 0.00004075 0.52 AML other m 2021-09-28T04:03:21.89
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