Earthquake with magnitude of ML 1.6 on date 24-09-2020 and time 05:31:46 (Italy) in region 2 km N Guardiaregia (CB)

A magnitude ML 1.6 earthquake occured in region: 2 km N Guardiaregia (CB), on

  • 24-09-2020 03:31:46 (UTC)
  • 24-09-2020 05:31:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.46, 14.54 at 8 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Guardiaregia CB 2 801 801
Campochiaro CB 3 646 1447
San Polo Matese CB 4 470 1917
Vinchiaturo CB 6 3324 5241
Colle d'Anchise CB 6 807 6048
Bojano CB 7 8058 14106
Baranello CB 8 2673 16779
San Giuliano del Sannio CB 8 1029 17808
Sepino CB 9 1964 19772
Spinete CB 11 1320 21092
Cercepiccola CB 11 681 21773
Busso CB 11 1273 23046
San Massimo CB 12 855 23901
Pietraroja BN 12 545 24446
Mirabello Sannitico CB 13 2180 26626
Cusano Mutri BN 14 4091 30717
Sassinoro BN 14 618 31335
Ferrazzano CB 14 3344 34679
Casalciprano CB 14 564 35243
Cantalupo nel Sannio IS 14 739 35982
Sant'Elena Sannita IS 15 275 36257
Oratino CB 15 1641 37898
Campobasso CB 15 49431 87329
Cercemaggiore CB 15 3777 91106
Macchiagodena IS 16 1854 92960
San Gregorio Matese CE 16 988 93948
Morcone BN 17 4932 98880
Roccamandolfi IS 17 938 99818
Castello del Matese CE 17 1494 101312
Gildone CB 18 809 102121
Santa Croce del Sannio BN 18 927 103048
Frosolone IS 18 3170 106218
Santa Maria del Molise IS 18 665 106883
Piedimonte Matese CE 18 11297 118180
San Potito Sannitico CE 18 1925 120105
Castropignano CB 18 947 121052
Gioia Sannitica CE 19 3638 124690
Cerreto Sannita BN 19 3940 128630
Molise CB 20 167 128797
Ripalimosani CB 20 3114 131911
Castelpetroso IS 20 1680 133591

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km NW of Benevento (60091 inhabitants)
46 Km NE of Caserta (76326 inhabitants)
59 Km N of Acerra (59573 inhabitants)
61 Km NE of Aversa (53047 inhabitants)
63 Km NE of Afragola (65057 inhabitants)
64 Km NW of Avellino (54857 inhabitants)
65 Km NE of Casoria (77642 inhabitants)
65 Km NE of Giugliano in Campania (122974 inhabitants)
69 Km NE of Marano di Napoli (59874 inhabitants)
72 Km N of Portici (55274 inhabitants)
73 Km NE of Napoli (974074 inhabitants)
74 Km N of Ercolano (53709 inhabitants)
74 Km W of San Severo (53905 inhabitants)
76 Km N of Torre del Greco (86275 inhabitants)
78 Km NE of Pozzuoli (81661 inhabitants)
79 Km N of Scafati (50787 inhabitants)
84 Km W of Foggia (151991 inhabitants)
85 Km N of Castellammare di Stabia (66466 inhabitants)
85 Km N of Cava de' Tirreni (53659 inhabitants)
89 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 1.6 2020-09-24
03:31:46
41.46 14.54 8 2020-09-25
13:18:00
Bollettino Sismico Italiano INGV 83239241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-24 03:31:46 ± 0.05
Latitude 41.46 ± 0.00
Longitude 14.54 ± 0.00
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83239241

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 307
Semi-minor axis of confidence ellipse (meter) 148
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 257
Circular confidence region, given by single value of horizontal uncertainty (meter) 310
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 50
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.50272
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations 14
Type of magnitude ML
Reference to an origin 83239241
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-09-25 12:53:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ROSPO.HHZ. 2020-09-24T03:32:13.91 3.0 undecidable manual S -4.02 0
IV.PIGN.HNZ. 2020-09-24T03:32:01.13 0.3 undecidable manual S 227 0.3741 50 0.29 68
IV.PSB1.HHZ. 2020-09-24T03:31:59.16 0.6 undecidable manual S 139 0.3094 50 0.26 46
IV.TRIV.HHZ. 2020-09-24T03:31:59.04 0.3 undecidable manual S 1 0.3085 50 0.14 71
IV.MIDA.HNZ. 2020-09-24T03:31:58.13 0.6 undecidable manual S 311 0.2833 105 0.16 48
IV.VITU.HNZ. 2020-09-24T03:31:57.82 0.6 undecidable manual S 166 0.2824 105 -0.11 48
IV.MELA.HNN. 2020-09-24T03:31:56.41 0.6 undecidable manual P 60 0.5027 50 -0.64 40
IV.CERA.HNZ. 2020-09-24T03:31:55.28 0.6 undecidable manual P 290 0.4164 50 -0.29 45
IV.PIGN.HNZ. 2020-09-24T03:31:55.00 0.3 undecidable manual P 227 0.3741 50 0.14 70
IV.VAGA.HHZ. 2020-09-24T03:31:55.79 0.6 undecidable manual S 260 0.2347 108 -0.38 46
IV.RNI2.HNZ. 2020-09-24T03:31:54.72 0.6 undecidable manual P 310 0.3813 50 -0.25 46
IV.TRIV.HHZ. 2020-09-24T03:31:53.78 0.3 undecidable manual P 1 0.3085 50 0.05 73
IV.SGG.HHZ. 2020-09-24T03:31:53.08 0.3 undecidable manual S 240 0.1412 118 0.24 72
IV.VITU.HNZ. 2020-09-24T03:31:53.10 0.3 undecidable manual P 166 0.2824 105 -0.08 73
IV.PSB1.HHZ. 2020-09-24T03:31:53.69 0.3 undecidable manual P 139 0.3094 50 -0.05 73
IV.GATE.HNZ. 2020-09-24T03:31:53.42 0.6 undecidable manual P 79 0.2815 105 0.26 47
IV.VAGA.HHZ. 2020-09-24T03:31:52.20 0.3 undecidable manual P 260 0.2347 108 0.04 74
IV.SACR.HHZ. 2020-09-24T03:31:52.66 0.3 undecidable manual S 116 0.1367 119 -0.03 75
IV.MIDA.HNZ. 2020-09-24T03:31:52.99 0.6 undecidable manual P 311 0.2833 105 -0.21 47
IV.PTRJ.HHZ. 2020-09-24T03:31:51.47 0.3 undecidable manual S 186 0.0944 129 0.15 74
IV.BSSO.HHZ. 2020-09-24T03:31:51.74 0.3 undecidable manual S 24 0.0962 128 0.34 71
IV.SACR.HHZ. 2020-09-24T03:31:50.07 0.3 undecidable manual P 116 0.1367 119 -0.08 75
IV.SGG.HHZ. 2020-09-24T03:31:50.13 0.3 undecidable manual P 240 0.1412 118 -0.11 74
IV.BSSO.HHZ. 2020-09-24T03:31:49.31 0.1 negative manual P 24 0.0962 128 -0.09 100
IV.PTRJ.HHZ. 2020-09-24T03:31:49.17 0.3 undecidable manual P 186 0.0944 129 -0.19 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BSSO.HHE. ML:1.8 0.0007505 1.54 AML other m 2020-09-24T03:31:52.19
IV.BSSO.HNE. ML:1.7 0.000718 1.54 AML other m 2020-09-24T03:31:52.20
IV.PTRJ.HNN. ML:1.6 0.000592 0.4 AML other m 2020-09-24T03:31:53.86
IV.BSSO.HHN. ML:1.6 0.0005335 1.18 AML other m 2020-09-24T03:31:54.10
IV.BSSO.HNN. ML:1.6 0.000522 1.18 AML other m 2020-09-24T03:31:54.70
IV.PTRJ.HNE. ML:1.6 0.0006135 0.66 AML other m 2020-09-24T03:31:55.43
IV.SGG.HHE. ML:1.6 0.000366 0.42 AML other m 2020-09-24T03:31:56.25
IV.SGG.HHN. ML:1.5 0.0002825 0.46 AML other m 2020-09-24T03:31:57.39
IV.SACR.HHE. ML:1.7 0.000555 0.98 AML other m 2020-09-24T03:31:57.19
IV.SACR.HHN. ML:1.8 0.0006725 0.54 AML other m 2020-09-24T03:31:59.52
IV.VAGA.HHN. ML:1.6 0.000219 0.74 AML other m 2020-09-24T03:32:01.65
IV.VAGA.HNN. ML:1.6 0.0002135 0.74 AML other m 2020-09-24T03:32:01.29
IV.VAGA.HNE. ML:1.4 0.00014 0.48 AML other m 2020-09-24T03:32:03.26
IV.VAGA.HHE. ML:1.4 0.000148 0.46 AML other m 2020-09-24T03:32:03.26
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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Type Description Link
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