Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 20-03-2024 and time 11:51:24 (UTC) in region 3 km E San Pietro Avellana (IS)

A magnitude ML 1.4 earthquake occured in region: 3 km E San Pietro Avellana (IS), on

  • 20-03-2024 11:51:24 (UTC)
  • 20-03-2024 12:51:24 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.7800, 14.2120 at 17 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
San Pietro Avellana IS 3 503 503
Vastogirardi IS 4 704 1207
Capracotta IS 8 903 2110
Castel di Sangro AQ 9 6538 8648
Ateleta AQ 9 1181 9829
Castel del Giudice IS 9 346 10175
Roccasicura IS 9 550 10725
Rionero Sannitico IS 9 1118 11843
Forlì del Sannio IS 10 675 12518
Carovilli IS 10 1359 13877
Sant'Angelo del Pesco IS 12 364 14241
Acquaviva d'Isernia IS 13 425 14666
Pescopennataro IS 13 285 14951
Agnone IS 13 5139 20090
Roccaraso AQ 13 1627 21717
Montenero Val Cocchiara IS 14 538 22255
Gamberale CH 14 320 22575
Scontrone AQ 15 574 23149
Pietrabbondante IS 15 759 23908
Pescolanciano IS 15 855 24763
Miranda IS 15 1047 25810
Alfedena AQ 16 864 26674
Castelverrino IS 16 115 26789
Rivisondoli AQ 16 700 27489
Pizzoferrato CH 16 1130 28619
Cerro al Volturno IS 17 1281 29900
Poggio Sannita IS 17 702 30602
Pescocostanzo AQ 17 1128 31730
Borrello CH 18 354 32084
Quadri CH 18 815 32899
Rosello CH 18 237 33136
Barrea AQ 18 726 33862
Chiauci IS 18 233 34095
Belmonte del Sannio IS 18 768 34863
Castel San Vincenzo IS 18 516 35379
Sessano del Molise IS 19 727 36106
Pizzone IS 19 329 36435
Pesche IS 20 1661 38096
Fornelli IS 20 1909 40005
Roio del Sangro CH 20 103 40108
Civitaluparella CH 20 351 40459
Rocchetta a Volturno IS 20 1113 41572

Municipalities with at least 50000 inhabitants

An earthquake occurred to
64 Km S of Chieti (51815 inhabitants)
76 Km S of Pescara (121014 inhabitants)
79 Km N of Caserta (76326 inhabitants)
82 Km S of Montesilvano (53738 inhabitants)
86 Km NW of Benevento (60091 inhabitants)
90 Km N of Aversa (53047 inhabitants)
93 Km SE of L'Aquila (69753 inhabitants)
94 Km N of Acerra (59573 inhabitants)
95 Km N of Giugliano in Campania (122974 inhabitants)
96 Km N of Afragola (65057 inhabitants)
97 Km N of Casoria (77642 inhabitants)
98 Km W of San Severo (53905 inhabitants)
98 Km N of Marano di Napoli (59874 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
Reviewed
Rev100 		ML 1.4 2024-03-20
11:51:24		 41.7795 14.2118 17 2024-03-20
12:06:01		 Sala Sismica INGV-Roma 126010251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-03-20 11:51:24 ± 0.08
Latitude 41.7795 ± 0.0018
Longitude 14.2118 ± 0.0036
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 126010251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 250
Semi-minor axis of confidence ellipse (meter) 235
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 103
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 98
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.48473
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 126010251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-03-20 12:06:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2024-03-20T11:52:04.48 3.0 undecidable manual S -0.01 0
IV.LRP.EHZ. 2024-03-20T11:51:41.26 0.6 undecidable manual S 254 53.8017 98 0.04 47
IV.VVLD.HHZ. 2024-03-20T11:51:40.02 0.3 undecidable manual S 282 49.7169 99 -0.11 70
IV.POFI.HHZ. 2024-03-20T11:51:38.20 0.3 undecidable manual S 261 41.9247 101 0.11 71
IV.TRIV.HHZ. 2024-03-20T11:51:34.45 1.0 undecidable manual S 93 28.0497 109 -0.05 25
IV.LPEL.HHZ. 2024-03-20T11:51:34.90 0.3 undecidable manual S 355 29.748 108 -0.04 74
IV.LRP.EHZ. 2024-03-20T11:51:34.03 0.6 negative manual P 254 53.8017 98 -0.03 47
IV.VVLD.HHZ. 2024-03-20T11:51:33.23 0.6 positive manual P 282 49.7169 99 -0.2 46
IV.POFI.HHZ. 2024-03-20T11:51:32.19 0.6 negative manual P 261 41.9247 101 -0.07 48
IV.MIDA.HHZ. 2024-03-20T11:51:31.43 0.6 undecidable manual S 167 15.6732 128 -0.15 49
IV.RNI2.HHZ. 2024-03-20T11:51:30.58 0.3 undecidable manual S 210 9.7791 144 0.09 76
IV.LPEL.HHZ. 2024-03-20T11:51:30.47 0.1 negative manual P 355 29.748 108 0.03 97
IV.TRIV.HHZ. 2024-03-20T11:51:29.98 1.0 positive manual P 93 28.0497 109 -0.2 24
IV.MIDA.HHZ. 2024-03-20T11:51:28.53 0.3 positive manual P 167 15.6732 128 0.03 75
IV.RNI2.HHZ. 2024-03-20T11:51:27.99 0.1 positive manual P 210 9.7791 144 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RNI2.HHE. ML:1.6 0.000373 1.2 AML other m 2024-03-20T11:51:31.82
IV.RNI2.HHN. ML:1.6 0.00038250000000000003 0.38 AML other m 2024-03-20T11:51:31.49
IV.MIDA.HHE. ML:1.6 0.00026900000000000003 1.62 AML other m 2024-03-20T11:51:32.03
IV.MIDA.HHN. ML:1.5 0.00023349999999999998 0.52 AML other m 2024-03-20T11:51:32.52
IV.LPEL.HHN. ML:1.2 0.00007045000000000002 0.78 AML other m 2024-03-20T11:51:36.41
IV.LPEL.HHE. ML:1.4 0.0001215 0.42 AML other m 2024-03-20T11:51:36.71
IV.POFI.HHE. ML:1.1 0.000034 0.94 AML other m 2024-03-20T11:51:38.96
IV.POFI.HHN. ML:0.9 0.000026349999999999997 0.42 AML other m 2024-03-20T11:51:38.48
IV.VVLD.HHE. ML:1.6 0.00009789999999999998 0.36 AML other m 2024-03-20T11:51:40.45
IV.VVLD.HHN. ML:1.6 0.00010719999999999999 0.16 AML other m 2024-03-20T11:51:40.41
IV.LRP.EHN. ML:0.9 0.000019549999999999997 0.3 AML other m 2024-03-20T11:51:41.86
IV.LRP.EHE. ML:1.6 0.0000926 1.66 AML other m 2024-03-20T11:51:41.14
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