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

A magnitude ML 1.5 earthquake occured in region: 4 km SW 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) 41.75, 14.17 at 16 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
San Pietro Avellana IS 4 503 503
Rionero Sannitico IS 5 1118 1621
Castel di Sangro AQ 6 6538 8159
Forlì del Sannio IS 6 675 8834
Roccasicura IS 8 550 9384
Vastogirardi IS 8 704 10088
Acquaviva d'Isernia IS 9 425 10513
Montenero Val Cocchiara IS 9 538 11051
Scontrone AQ 11 574 11625
Alfedena AQ 11 864 12489
Carovilli IS 11 1359 13848
Ateleta AQ 12 1181 15029
Capracotta IS 12 903 15932
Cerro al Volturno IS 12 1281 17213
Castel del Giudice IS 13 346 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 16 1909 26745
Gamberale CH 17 320 27065
Agnone IS 18 5139 32204
Pescopennataro IS 18 285 32489
Pescocostanzo AQ 18 1128 33617
Scapoli IS 18 680 34297
Colli a Volturno IS 18 1349 35646
Pesche IS 18 1661 37307
Pietrabbondante IS 18 759 38066
Sessano del Molise IS 19 727 38793
Civitella Alfedena AQ 19 296 39089
Isernia IS 19 21842 60931
Castelverrino IS 19 115 61046
Pizzoferrato CH 20 1130 62176
Chiauci IS 20 233 62409

Municipalities with at least 50000 inhabitants

An earthquake occurred to
67 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
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.5 2020-01-21
22:29:06
41.75 14.17 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 ± 0.12
Latitude 41.75 ± 0.01
Longitude 14.17 ± 0.01
Depth (km) 16 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 75709261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 875
Semi-minor axis of confidence ellipse (meter) 615
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 215
Circular confidence region, given by single value of horizontal uncertainty (meter) 880
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 20
Number of defining phases 20
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) 0.05126
Epicentral distance of station farthest from the epicenter (degree) 0.55758
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

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 Takeoff_angle Residual Weight
IV.T0110.HHZ. 2020-01-21T22:29:26.27 0.6 undecidable manual S 329 0.5576 95 0.55 42
IT.SULP.HGZ. 2020-01-21T22:29:21.00 0.6 undecidable manual S 332 0.3768 99 0.6 42
IV.VVLD.HHZ. 2020-01-21T22:29:21.86 0.6 undecidable manual S 286 0.4227 98 0.12 47
IV.TRIV.HHZ. 2020-01-21T22:29:18.50 0.6 undecidable manual S 87 0.2851 103 0.77 38
IV.INTR.HHZ. 2020-01-21T22:29:18.84 0.3 undecidable manual S 323 0.3247 101 -0.02 72
IV.LPEL.HHZ. 2020-01-21T22:29:17.95 0.6 undecidable manual S 2 0.2932 103 -0.02 49
IV.T0110.HHZ. 2020-01-21T22:29:17.40 0.3 undecidable manual P 329 0.5576 95 -0.28 66
IV.VVLD.HHZ. 2020-01-21T22:29:15.21 0.3 undecidable manual P 286 0.4227 98 -0.17 69
IV.CERA.HHZ. 2020-01-21T22:29:15.77 0.6 undecidable manual S 216 0.1916 114 0.67 43
IT.SULP.HGZ. 2020-01-21T22:29:14.57 0.3 undecidable manual P 332 0.3768 99 -0.04 72
IV.VAGA.HHZ. 2020-01-21T22:29:14.06 0.3 undecidable manual P 172 0.3417 100 0.05 72
IV.POFI.HHZ. 2020-01-21T22:29:14.34 0.6 undecidable manual P 264 0.3426 100 0.32 46
IV.INTR.HHZ. 2020-01-21T22:29:13.52 0.3 undecidable manual P 323 0.3247 101 -0.2 70
IV.MIDA.HHZ. 2020-01-21T22:29:13.03 0.6 undecidable manual S 150 0.1286 128 -0.46 46
IV.TRIV.HHZ. 2020-01-21T22:29:13.04 0.3 undecidable manual P 87 0.2851 103 -0.02 73
IV.RNI2.HHZ. 2020-01-21T22:29:12.29 0.3 undecidable manual S 193 0.0513 156 0.23 75
IV.LPEL.HHZ. 2020-01-21T22:29:12.82 0.3 undecidable manual P 2 0.2932 103 -0.38 68
IV.CERA.HHZ. 2020-01-21T22:29:11.56 0.1 undecidable manual P 216 0.1916 114 0.02 100
IV.MIDA.HHZ. 2020-01-21T22:29:10.42 0.1 undecidable manual P 150 0.1286 128 -0.19 98
IV.RNI2.HHZ. 2020-01-21T22:29:09.65 0.1 undecidable manual P 193 0.0513 156 -0.14 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CERA.HHN. ML:0 6.259215E-5 0.7424 AML other m 2020-01-21T22:29:15.58
IV.CERA.HNN. ML:0 7.787533E-5 1.856 AML other m 2020-01-21T22:29:16.88
IV.CERA.HHE. ML:0 8.819449E-5 1.4848 AML other m 2020-01-21T22:29:16.40
IV.CERA.HNE. ML:0 0.000102746035 2.88 AML other m 2020-01-21T22:29:16.40
IV.RNI2.HHE. ML:1.6 0.0004099008 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.HNE. ML:1.6 0.00037392015 0.1408 AML other m 2020-01-21T22:29:12.61
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 0.0003135296 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 0.0003230431 0.2432 AML other m 2020-01-21T22:29:14.78
IV.MIDA.HNN. ML:1.6 0.00029777425 0.2944 AML other m 2020-01-21T22:29:14.39
IV.LPEL.HHE. ML:1.5 0.00013582855 0.1664 AML other m 2020-01-21T22:29:19.35
IV.LPEL.HHN. ML:1.5 0.0001354753 0.1792 AML other m 2020-01-21T22:29:18.34
IV.LPEL.HNE. ML:1.6 0.0001779601 0.8576 AML other m 2020-01-21T22:29:12.81
IV.LPEL.HNN. ML:1.6 0.000161119515 0.1792 AML other m 2020-01-21T22:29:18.35
IV.TRIV.HHE. ML:1.4 0.00010082962 5.952 AML other m 2020-01-21T22:29:18.80
IV.TRIV.HHN. ML:1.4 9.730079E-5 3.968 AML other m 2020-01-21T22:29:20.01
IV.TRIV.HNE. ML:1.2 7.7189695E-5 0.7936 AML other m 2020-01-21T22:29:22.87
IV.TRIV.HNN. ML:1.3 8.8229545E-5 1.2032 AML other m 2020-01-21T22:29:25.45
IV.INTR.HHE. ML:1.5 0.0001201848 0.1408 AML other m 2020-01-21T22:29:19.56
IV.INTR.HHN. ML:1.7 0.00018919205 0.1664 AML other m 2020-01-21T22:29:20.93
IV.VVLD.HHE. ML:1.4 6.8896595E-5 0.1408 AML other m 2020-01-21T22:29:22.28
IV.VVLD.HHN. ML:1.3 5.8514E-5 0.1408 AML other m 2020-01-21T22:29:22.78
IV.VVLD.HNE. ML:1.7 0.00014456836 1.1392 AML other m 2020-01-21T22:29:22.93
IV.VVLD.HNN. ML:1.7 0.00012936143 1.1136 AML other m 2020-01-21T22:29:24.02
IV.T0110.HHE. ML:1.6 8.11066E-5 0.192 AML other m 2020-01-21T22:29:28.51
IV.T0110.HHN. ML:1.5 5.988936E-5 0.32 AML other m 2020-01-21T22:29:28.01
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download