Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 31-03-2023 and time 22:49:59 (Italy) in region 1 km E Cusano Mutri (BN)

A magnitude ML 1.2 earthquake occured in region: 1 km E Cusano Mutri (BN), on

  • 31-03-2023 20:49:59 (UTC)
  • 31-03-2023 22:49:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.3420, 14.5190 at 13 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
Cusano Mutri BN 1 4091 4091
Pietraroja BN 3 545 4636
Cerreto Sannita BN 7 3940 8576
San Lorenzello BN 7 2227 10803
Gioia Sannitica CE 8 3638 14441
Faicchio BN 8 3634 18075
San Potito Sannitico CE 11 1925 20000
Guardiaregia CB 11 801 20801
Sepino CB 11 1964 22765
Guardia Sanframondi BN 12 5078 27843
San Salvatore Telesino BN 12 3999 31842
Castelvenere BN 12 2562 34404
Campochiaro CB 12 646 35050
Castello del Matese CE 12 1494 36544
Piedimonte Matese CE 12 11297 47841
Morcone BN 12 4932 52773
Sassinoro BN 13 618 53391
San Gregorio Matese CE 13 988 54379
San Lupo BN 13 801 55180
San Polo Matese CB 13 470 55650
San Lorenzo Maggiore BN 14 2154 57804
Telese Terme BN 14 7486 65290
Puglianello BN 14 1349 66639
Alife CE 15 7616 74255
Pontelandolfo BN 16 2167 76422
Amorosi BN 16 2797 79219
San Giuliano del Sannio CB 16 1029 80248
Bojano CB 16 8058 88306
Solopaca BN 17 3820 92126
Ruviano CE 17 1655 93781
Casalduni BN 17 1378 95159
Vinchiaturo CB 18 3324 98483
Cercepiccola CB 18 681 99164
Castel Campagnano CE 18 1581 100745
Alvignano CE 19 4824 105569
Santa Croce del Sannio BN 19 927 106496
Campolattaro BN 19 1072 107568
Colle d'Anchise CB 19 807 108375
Dragoni CE 19 2108 110483
San Massimo CB 19 855 111338
Melizzano BN 20 1858 113196

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NW of Benevento (60091 inhabitants)
33 Km NE of Caserta (76326 inhabitants)
46 Km N of Acerra (59573 inhabitants)
49 Km NE of Aversa (53047 inhabitants)
50 Km NE of Afragola (65057 inhabitants)
52 Km NE of Casoria (77642 inhabitants)
53 Km NW of Avellino (54857 inhabitants)
53 Km NE of Giugliano in Campania (122974 inhabitants)
56 Km NE of Marano di Napoli (59874 inhabitants)
59 Km N of Portici (55274 inhabitants)
60 Km NE of Napoli (974074 inhabitants)
61 Km N of Ercolano (53709 inhabitants)
63 Km N of Torre del Greco (86275 inhabitants)
66 Km NE of Pozzuoli (81661 inhabitants)
66 Km N of Scafati (50787 inhabitants)
72 Km N of Castellammare di Stabia (66466 inhabitants)
73 Km N of Cava de' Tirreni (53659 inhabitants)
76 Km N of Salerno (135261 inhabitants)
81 Km W of San Severo (53905 inhabitants)
87 Km W of Foggia (151991 inhabitants)
90 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 1.2 2023-03-31
20:49:59		 41.3417 14.5192 13 2024-03-01
17:18:19		 Bollettino Sismico Italiano INGV 124482121
Reviewed
Rev100 		ML 1.2 2023-03-31
20:49:59		 41.3413 14.5192 15 2023-03-31
20:54:20		 Sala Sismica INGV-Roma 115926721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-31 20:49:59 ± 0.19
Latitude 41.3417 ± 0.0072
Longitude 14.5192 ± 0.0120
Depth (km) 13 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 124482121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 975
Semi-minor axis of confidence ellipse (meter) 483
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 136
Circular confidence region, given by single value of horizontal uncertainty (meter) 970.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 105
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.11421
Epicentral distance of station farthest from the epicenter (degree) 0.31206
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.0
Num. used stations 4
Type of magnitude ML
Reference to an origin 115926721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-31 20:54:20

ML:1.2

Field Value
Value 1.2
Uncertainty 0.0
Num. used stations 4
Type of magnitude ML
Reference to an origin 124482121
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-04 13:30:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIGN.HHZ. 2023-03-31T20:50:10.33 0.6 undecidable manual S 241 32.3454 95 -0.1 48
IV.BSSO.HHZ. 2023-03-31T20:50:08.23 0.6 undecidable manual S 15 23.4543 99 0.14 48
IV.VAGA.HHZ. 2023-03-31T20:50:08.99 0.6 undecidable manual S 289 25.0527 97 0.49 43
IV.SACR.HHZ. 2023-03-31T20:50:06.11 0.6 undecidable manual S 68 16.6722 108 -0.2 48
IV.PAOL.HHN. 2023-03-31T20:50:06.56 0.3 undecidable manual P 173 34.6431 94 0.47 66
IV.SGG.HHZ. 2023-03-31T20:50:05.66 0.6 undecidable manual S 293 12.6762 120 0.33 47
IV.PIGN.HHZ. 2023-03-31T20:50:05.33 0.3 undecidable manual P 241 32.3454 95 -0.41 68
IV.BSSO.HHZ. 2023-03-31T20:50:04.28 0.1 undecidable manual P 15 23.4543 99 -0.1 98
IV.VAGA.HHZ. 2023-03-31T20:50:04.46 0.3 undecidable manual P 289 25.0527 97 -0.16 73
IV.SACR.HHZ. 2023-03-31T20:50:03.34 0.3 undecidable manual P 68 16.6722 108 -0.01 75
IV.SGG.HHZ. 2023-03-31T20:50:02.70 0.1 undecidable manual P 293 12.6762 120 -0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SGG.HHN. ML:1.1 0.0001295 0.5 AML other m 2023-03-31T20:50:06.14
IV.SGG.HHE. ML:1.2 0.000134 0.26 AML other m 2023-03-31T20:50:06.84
IV.VAGA.HHE. ML:1.2 0.0000831 0.1 AML other m 2023-03-31T20:50:09.66
IV.VAGA.HHN. ML:1.2 0.00009120000000000001 0.44 AML other m 2023-03-31T20:50:13.25
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