Earthquake with magnitude of ML 1.1 on date 03-07-2021 and time 04:50:53 (Italy) in region Roccasicura (IS)

A magnitude ML 1.1 earthquake occured in region: Roccasicura (IS), on

  • 03-07-2021 02:50:53 (UTC)
  • 03-07-2021 04:50:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6950, 14.2350 at 10 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Roccasicura IS 1 550 550
Forlì del Sannio IS 4 675 1225
Carovilli IS 5 1359 2584
Miranda IS 6 1047 3631
Acquaviva d'Isernia IS 7 425 4056
Rionero Sannitico IS 8 1118 5174
Pescolanciano IS 9 855 6029
Vastogirardi IS 9 704 6733
Pesche IS 10 1661 8394
Sessano del Molise IS 10 727 9121
San Pietro Avellana IS 11 503 9624
Cerro al Volturno IS 12 1281 10905
Isernia IS 12 21842 32747
Fornelli IS 13 1909 34656
Chiauci IS 13 233 34889
Carpinone IS 14 1157 36046
Pettoranello del Molise IS 14 460 36506
Pietrabbondante IS 14 759 37265
Montenero Val Cocchiara IS 14 538 37803
Civitanova del Sannio IS 14 945 38748
Castel di Sangro AQ 15 6538 45286
Rocchetta a Volturno IS 15 1113 46399
Castel San Vincenzo IS 15 516 46915
Colli a Volturno IS 15 1349 48264
Macchia d'Isernia IS 16 1035 49299
Capracotta IS 16 903 50202
Castelverrino IS 16 115 50317
Agnone IS 17 5139 55456
Sant'Agapito IS 17 1496 56952
Pizzone IS 17 329 57281
Scapoli IS 17 680 57961
Alfedena AQ 17 864 58825
Scontrone AQ 17 574 59399
Montaquila IS 17 2456 61855
Poggio Sannita IS 18 702 62557
Castelpetroso IS 18 1680 64237
Castel del Giudice IS 18 346 64583
Ateleta AQ 18 1181 65764
Bagnoli del Trigno IS 19 735 66499
Duronia CB 19 405 66904
Longano IS 19 690 67594
Santa Maria del Molise IS 19 665 68259
Monteroduni IS 20 2264 70523
Castelpizzuto IS 20 155 70678

Municipalities with at least 50000 inhabitants

An earthquake occurred to
69 Km N of Caserta (76326 inhabitants)
73 Km S of Chieti (51815 inhabitants)
78 Km NW of Benevento (60091 inhabitants)
80 Km N of Aversa (53047 inhabitants)
84 Km N of Acerra (59573 inhabitants)
85 Km N of Giugliano in Campania (122974 inhabitants)
86 Km S of Pescara (121014 inhabitants)
86 Km N of Afragola (65057 inhabitants)
88 Km N of Casoria (77642 inhabitants)
89 Km N of Marano di Napoli (59874 inhabitants)
91 Km S of Montesilvano (53738 inhabitants)
95 Km N of Pozzuoli (81661 inhabitants)
95 Km N of Napoli (974074 inhabitants)
95 Km W of San Severo (53905 inhabitants)
97 Km N of Portici (55274 inhabitants)
99 Km NW of Avellino (54857 inhabitants)
99 Km N of Ercolano (53709 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 1.1 2021-07-03
02:50:53
41.6953 14.2353 10 2021-07-03
03:05:21
Sala Sismica INGV-Roma 92174291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-03 02:50:53 ± 0.07
Latitude 41.6953 ± 0.0054
Longitude 14.2353 ± 0.0060
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 92174291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 638
Semi-minor axis of confidence ellipse (meter) 489
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 187
Circular confidence region, given by single value of horizontal uncertainty (meter) 640.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.48833
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 92174291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-03 03:05:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LAV9.HHZ. 2021-07-03T02:51:17.95 3.0 negative manual P 2.3 0
IV.VVLD.HHZ. 2021-07-03T02:51:11.06 0.6 undecidable manual S 291 54.2013 50 0.01 47
IV.INTR.HHZ. 2021-07-03T02:51:08.73 0.3 undecidable manual S 322 44.4222 50 0.28 68
IV.VAGA.HHZ. 2021-07-03T02:51:05.00 0.6 undecidable manual S 180 31.0467 50 0.12 48
IV.VVLD.HHZ. 2021-07-03T02:51:03.28 0.1 undecidable manual P 291 54.2013 50 -0.52 84
IV.TRIV.HHZ. 2021-07-03T02:51:03.82 0.6 undecidable manual S 73 27.2505 50 -0.04 49
IV.INTR.HHZ. 2021-07-03T02:51:02.13 0.1 negative manual P 322 44.4222 50 -0.18 92
IV.LPEL.HNE. 2021-07-03T02:51:01.52 1.0 undecidable manual P 354 39.2274 50 0.02 24
IV.BSSO.HHZ. 2021-07-03T02:51:01.02 0.1 undecidable manual P 119 34.0437 50 0.32 91
IV.VAGA.HHZ. 2021-07-03T02:51:00.31 0.6 undecidable manual P 180 31.0467 50 0.07 48
IV.TST01.HHZ. 2021-07-03T02:50:59.58 0.6 undecidable manual S 65 13.875 126 -0.28 48
IV.TRIV.HHZ. 2021-07-03T02:50:59.73 0.3 negative manual P 73 27.2505 50 0.08 73
IV.CERA.HHZ. 2021-07-03T02:50:58.39 0.1 undecidable manual P 239 20.9679 116 -0.18 96
IV.RNI2.HNE. 2021-07-03T02:50:58.86 0.6 undecidable manual S 277 6.8931 145 0.72 42
IV.TST01.HHZ. 2021-07-03T02:50:57.38 0.1 undecidable manual P 65 13.875 126 0.04 100
IV.MIDA.HHZ. 2021-07-03T02:50:57.75 0.6 undecidable manual S 165 6.0939 149 -0.24 49
IV.MIDA.HHZ. 2021-07-03T02:50:56.14 0.1 positive manual P 165 6.0939 149 -0.12 100
IV.RNI2.HNE. 2021-07-03T02:50:56.54 0.1 undecidable manual P 277 6.8931 145 0.19 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MIDA.HNE. ML:1.7 0.0007934999999999999 0.24 AML other m 2021-07-03T02:50:57.96
IV.MIDA.HHE. ML:1.6 0.000619 1.4 AML other m 2021-07-03T02:50:57.88
IV.MIDA.HNN. ML:1.6 0.000616 1.4 AML other m 2021-07-03T02:50:57.88
IV.MIDA.HHN. ML:1.7 0.0008309999999999999 0.24 AML other m 2021-07-03T02:50:57.96
IV.VAGA.HHE. ML:0.8 0.000028049999999999997 1.58 AML other m 2021-07-03T02:51:05.92
IV.TST01.HHE. ML:0.8 0.00006594999999999999 0.24 AML other m 2021-07-03T02:51:05.08
IV.TST01.HHN. ML:1.0 0.0000929 0.32 AML other m 2021-07-03T02:51:05.21
IV.TRIV.HHE. ML:1.0 0.0000487 0.72 AML other m 2021-07-03T02:51:05.06
IV.VAGA.HHN. ML:1.2 0.00006945000000000001 0.92 AML other m 2021-07-03T02:51:07.11
IV.TRIV.HHN. ML:1.0 0.0000521 0.42 AML other m 2021-07-03T02:51:07.13
IV.CERA.HHE. ML:0.7 0.00003515 1 AML other m 2021-07-03T02:51:07.43
IV.CERA.HHN. ML:0.8 0.00004654999999999999 1.02 AML other m 2021-07-03T02:51:09.07
IV.INTR.HHE. ML:1.4 0.00007869999999999999 0.18 AML other m 2021-07-03T02:51:09.21
IV.INTR.HHN. ML:1.5 0.00009165 0.72 AML other m 2021-07-03T02:51:09.68
IV.BSSO.HHN. ML:1.0 0.000041099999999999996 0.98 AML other m 2021-07-03T02:51:10.36
IV.VVLD.HHE. ML:1.0 0.0000241 0.8 AML other m 2021-07-03T02:51:11.45
IV.BSSO.HHE. ML:1.1 0.000049500000000000004 0.48 AML other m 2021-07-03T02:51:11.58
IV.VVLD.HHN. ML:0.9 0.000019549999999999997 0.94 AML other m 2021-07-03T02:51:15.22
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