Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 21-01-2020 and time 23:29:06 (Italy) in region 4 km S San Pietro Avellana (IS)

A magnitude ML 1.5 earthquake occured in region: 4 km S San Pietro Avellana (IS), on

  • 21-01-2020 22:29:06 (UTC)
  • 21-01-2020 23:29:06 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.7540, 14.1720 at 15 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
San Pietro Avellana IS 4 503 503
Rionero Sannitico IS 5 1118 1621
Castel di Sangro AQ 6 6538 8159
Forlì del Sannio IS 7 675 8834
Vastogirardi IS 8 704 9538
Roccasicura IS 8 550 10088
Acquaviva d'Isernia IS 9 425 10513
Montenero Val Cocchiara IS 10 538 11051
Scontrone AQ 11 574 11625
Carovilli IS 11 1359 12984
Ateleta AQ 12 1181 14165
Alfedena AQ 12 864 15029
Capracotta IS 12 903 15932
Castel del Giudice IS 12 346 16278
Cerro al Volturno IS 12 1281 17559
Roccaraso AQ 13 1627 19186
Miranda IS 14 1047 20233
Castel San Vincenzo IS 14 516 20749
Pizzone IS 15 329 21078
Barrea AQ 15 726 21804
Rivisondoli AQ 16 700 22504
Rocchetta a Volturno IS 16 1113 23617
Pescolanciano IS 16 855 24472
Sant'Angelo del Pesco IS 16 364 24836
Fornelli IS 17 1909 26745
Gamberale CH 17 320 27065
Agnone IS 17 5139 32204
Pescopennataro IS 17 285 32489
Pescocostanzo AQ 18 1128 33617
Colli a Volturno IS 18 1349 34966
Scapoli IS 18 680 35646
Pietrabbondante IS 18 759 36405
Pesche IS 18 1661 38066
Sessano del Molise IS 19 727 38793
Castelverrino IS 19 115 38908
Isernia IS 19 21842 60750
Civitella Alfedena AQ 19 296 61046
Pizzoferrato CH 20 1130 62176
Chiauci IS 20 233 62409

Municipalities with at least 50000 inhabitants

An earthquake occurred to
66 Km S of Chieti (51815 inhabitants)
77 Km N of Caserta (76326 inhabitants)
79 Km S of Pescara (121014 inhabitants)
85 Km S of Montesilvano (53738 inhabitants)
86 Km NW of Benevento (60091 inhabitants)
87 Km N of Aversa (53047 inhabitants)
91 Km N of Acerra (59573 inhabitants)
92 Km N of Giugliano in Campania (122974 inhabitants)
92 Km SE of L'Aquila (69753 inhabitants)
93 Km N of Afragola (65057 inhabitants)
95 Km N of Casoria (77642 inhabitants)
95 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
Bulletin
Rev1000 		ML 1.5 2020-01-21
22:29:06		 41.7545 14.1715 15 2020-07-18
21:08:19		 Bollettino Sismico Italiano INGV 76234201
Reviewed
Rev100 		ML 1.5 2020-01-21
22:29:06		 41.7533 14.1685 16 2020-01-21
22:49:02		 Sala Sismica INGV-Roma 75709261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-21 22:29:06 ± 0.09
Latitude 41.7545 ± 0.0045
Longitude 14.1715 ± 0.0072
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 76234201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 617
Semi-minor axis of confidence ellipse (meter) 188
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 247
Circular confidence region, given by single value of horizontal uncertainty (meter) 620.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 85
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.05306
Epicentral distance of station farthest from the epicenter (degree) 0.55848
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 28
Type of magnitude ML
Reference to an origin 76234201
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-03-06 13:11:42

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 28
Type of magnitude ML
Reference to an origin 75709261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-21 22:49:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T0110.HHZ. 2020-01-21T22:29:26.36 0.3 undecidable manual S 328 61.9935 94 0.52 41
IT.SULP.HGZ. 2020-01-21T22:29:21.01 0.6 undecidable manual S 331 41.8248 97 0.51 43
IV.VVLD.HHZ. 2020-01-21T22:29:21.97 0.1 undecidable manual S 286 47.1195 96 0.08 47
IT.SULA.HNN. 2020-01-21T22:29:20.89 0.3 undecidable manual S 329 41.1255 97 0.57 63
IT.SULC.HNZ. 2020-01-21T22:29:20.86 0.6 undecidable manual S 328 40.9257 97 0.59 42
IV.INTR.HHZ. 2020-01-21T22:29:19.02 0.3 undecidable manual S 322 36.0417 99 0.06 48
IV.POFI.HHZ. 2020-01-21T22:29:19.76 0.6 undecidable manual S 264 38.2284 98 0.21 46
IV.LPEL.HHZ. 2020-01-21T22:29:18.12 0.6 undecidable manual S 2 32.4453 100 0.1 48
IV.TRIV.HHZ. 2020-01-21T22:29:18.64 0.6 undecidable manual S 87 31.3464 101 0.91 38
IV.T0110.HHZ. 2020-01-21T22:29:17.42 0.1 undecidable manual P 328 61.9935 94 -0.38 86
IT.OPI.HGE. 2020-01-21T22:29:16.96 0.3 undecidable manual S 275 28.3494 103 0.02 49
IV.VVLD.HHZ. 2020-01-21T22:29:15.18 0.3 undecidable manual P 286 47.1195 96 -0.34 67
IV.CERA.HHZ. 2020-01-21T22:29:15.60 0.6 undecidable manual S 216 21.5673 110 0.41 46
IV.BSSO.HHE. 2020-01-21T22:29:15.20 0.3 undecidable manual P 123 41.9247 97 0.47 66
IV.POFI.HHZ. 2020-01-21T22:29:14.25 0.3 undecidable manual P 264 38.2284 98 0.08 71
IT.SULP.HGZ. 2020-01-21T22:29:14.55 0.3 undecidable manual P 331 41.8248 97 -0.17 70
IT.SULA.HNN. 2020-01-21T22:29:14.35 0.3 undecidable manual P 329 41.1255 97 -0.26 69
IV.MCI.EHE. 2020-01-21T22:29:14.95 0.6 undecidable manual P 226 41.7249 97 0.26 46
IT.SULC.HNZ. 2020-01-21T22:29:14.31 0.3 undecidable manual P 328 40.9257 97 -0.27 68
IV.MIDA.HHZ. 2020-01-21T22:29:13.22 0.6 undecidable manual S 151 14.2746 125 -0.24 48
IV.INTR.HHZ. 2020-01-21T22:29:13.51 0.1 undecidable manual P 322 36.0417 99 -0.32 91
IV.TRIV.HHZ. 2020-01-21T22:29:13.07 0.1 undecidable manual P 87 31.3464 101 -0.05 97
IV.VAGA.HHZ. 2020-01-21T22:29:13.98 0.1 undecidable manual P 172 37.9287 98 -0.15 70
IV.LPEL.HHZ. 2020-01-21T22:29:12.87 0.1 undecidable manual P 2 32.4453 100 -0.41 90
IT.OPI.HGE. 2020-01-21T22:29:12.56 0.3 undecidable manual P 275 28.3494 103 -0.1 73
IV.RNI2.HHZ. 2020-01-21T22:29:12.09 0.3 undecidable manual S 196 5.8941 153 0.12 75
IV.CERA.HHZ. 2020-01-21T22:29:11.57 0.1 undecidable manual P 216 21.5673 110 -0.08 98
IV.MIDA.HHZ. 2020-01-21T22:29:10.43 0.1 undecidable manual P 151 14.2746 125 -0.22 96
IV.RNI2.HHZ. 2020-01-21T22:29:09.67 0.1 undecidable manual P 196 5.8941 153 -0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LPEL.HNE. ML:1.6 0.00017796010000000002 0.8576 AML other m 2020-01-21T22:29:12.81
IV.RNI2.HHE. ML:1.6 0.00040990079999999994 0.1408 AML other m 2020-01-21T22:29:12.61
IV.RNI2.HNE. ML:1.5 0.00037392015 0.1408 AML other m 2020-01-21T22:29:12.61
IV.RNI2.HHN. ML:1.6 0.00044537555 0.1152 AML other m 2020-01-21T22:29:12.87
IV.RNI2.HNN. ML:1.6 0.0004172265 0.1152 AML other m 2020-01-21T22:29:12.87
IV.MIDA.HHE. ML:1.6 0.00031352960000000004 0.2944 AML other m 2020-01-21T22:29:14.39
IV.MIDA.HNN. ML:1.6 0.00029777425000000003 0.2944 AML other m 2020-01-21T22:29:14.39
IV.MIDA.HHN. ML:1.6 0.0003264999 0.2176 AML other m 2020-01-21T22:29:14.78
IV.MIDA.HNE. ML:1.6 0.00032304310000000005 0.2432 AML other m 2020-01-21T22:29:14.78
IV.CERA.HNN. ML:1.1 0.00007787533 0.144 AML other m 2020-01-21T22:29:15.88
IV.CERA.HHN. ML:1.0 0.00006259215 0.7424 AML other m 2020-01-21T22:29:15.58
IV.CERA.HHE. ML:1.2 0.00008819449 0.5152 AML other m 2020-01-21T22:29:16.40
IV.CERA.HNE. ML:1.2 0.000102746035 0.88 AML other m 2020-01-21T22:29:16.40
IV.LPEL.HHN. ML:1.5 0.00013547530000000002 0.1792 AML other m 2020-01-21T22:29:18.34
IV.LPEL.HNN. ML:1.6 0.000161119515 0.1792 AML other m 2020-01-21T22:29:18.35
IV.LPEL.HHE. ML:1.5 0.00013582855 0.1664 AML other m 2020-01-21T22:29:19.35
IV.INTR.HHE. ML:1.5 0.00012018479999999999 0.1408 AML other m 2020-01-21T22:29:19.56
IV.TRIV.HHN. ML:1.3 0.00009730079 0.032 AML other m 2020-01-21T22:29:20.01
IV.INTR.HHN. ML:1.7 0.00018919205 0.1664 AML other m 2020-01-21T22:29:20.93
IV.TRIV.HHE. ML:1.4 0.00010082962 0.048 AML other m 2020-01-21T22:29:21.80
IV.VVLD.HHE. ML:1.4 0.000068896595 0.1408 AML other m 2020-01-21T22:29:22.28
IV.VVLD.HHN. ML:1.3 0.000058514 0.1408 AML other m 2020-01-21T22:29:22.78
IV.TRIV.HNE. ML:1.2 0.000077189695 1.2064 AML other m 2020-01-21T22:29:22.87
IV.VVLD.HNN. ML:1.7 0.00012936143 0.8864 AML other m 2020-01-21T22:29:23.02
IV.VVLD.HNE. ML:1.7 0.00014456836 0.8608 AML other m 2020-01-21T22:29:23.93
IV.TRIV.HNN. ML:1.3 0.00008822954499999999 0.7968 AML other m 2020-01-21T22:29:25.45
IV.T0110.HHN. ML:1.5 0.00005988936 1.68 AML other m 2020-01-21T22:29:27.01
IV.T0110.HHE. ML:1.6 0.00008110660000000001 0.192 AML other m 2020-01-21T22:29:28.51
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