Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 21-01-2017 and time 02:07:09 (UTC) in region 2 km NW Roccasicura (IS)

A magnitude ML 1.3 earthquake occured in region: 2 km NW Roccasicura (IS), on

  • 21-01-2017 02:07:09 (UTC)
  • 21-01-2017 03:07:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.7180, 14.2160 at 10 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
Roccasicura IS 3 550 550
Forlì del Sannio IS 4 675 1225
Rionero Sannitico IS 6 1118 2343
Carovilli IS 7 1359 3702
Acquaviva d'Isernia IS 7 425 4127
Vastogirardi IS 7 704 4831
San Pietro Avellana IS 9 503 5334
Miranda IS 9 1047 6381
Pescolanciano IS 11 855 7236
Cerro al Volturno IS 12 1281 8517
Castel di Sangro AQ 12 6538 15055
Montenero Val Cocchiara IS 12 538 15593
Pesche IS 13 1661 17254
Sessano del Molise IS 13 727 17981
Fornelli IS 14 1909 19890
Capracotta IS 14 903 20793
Isernia IS 14 21842 42635
Castel San Vincenzo IS 14 516 43151
Pietrabbondante IS 15 759 43910
Chiauci IS 15 233 44143
Rocchetta a Volturno IS 15 1113 45256
Scontrone AQ 15 574 45830
Alfedena AQ 15 864 46694
Castel del Giudice IS 16 346 47040
Ateleta AQ 16 1181 48221
Pizzone IS 16 329 48550
Agnone IS 16 5139 53689
Colli a Volturno IS 16 1349 55038
Castelverrino IS 16 115 55153
Carpinone IS 17 1157 56310
Civitanova del Sannio IS 17 945 57255
Pettoranello del Molise IS 17 460 57715
Scapoli IS 17 680 58395
Macchia d'Isernia IS 18 1035 59430
Poggio Sannita IS 18 702 60132
Roccaraso AQ 18 1627 61759
Montaquila IS 19 2456 64215
Sant'Angelo del Pesco IS 19 364 64579
Barrea AQ 19 726 65305
Pescopennataro IS 19 285 65590
Sant'Agapito IS 19 1496 67086

Municipalities with at least 50000 inhabitants

An earthquake occurred to
71 Km S of Chieti (51815 inhabitants)
72 Km N of Caserta (76326 inhabitants)
81 Km NW of Benevento (60091 inhabitants)
83 Km N of Aversa (53047 inhabitants)
83 Km S of Pescara (121014 inhabitants)
87 Km N of Acerra (59573 inhabitants)
88 Km N of Giugliano in Campania (122974 inhabitants)
89 Km N of Afragola (65057 inhabitants)
89 Km S of Montesilvano (53738 inhabitants)
90 Km N of Casoria (77642 inhabitants)
91 Km N of Marano di Napoli (59874 inhabitants)
97 Km W of San Severo (53905 inhabitants)
97 Km N of Pozzuoli (81661 inhabitants)
98 Km N of Napoli (974074 inhabitants)
98 Km SE of L'Aquila (69753 inhabitants)
100 Km N of Portici (55274 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 1.3 2017-01-21
02:07:09		 41.7175 14.216 10 2018-01-10
09:44:28		 Bollettino Sismico Italiano INGV 39654571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-01-21 02:07:09 ± 0.13
Latitude 41.7175 ± 0.0045
Longitude 14.2160 ± 0.0060
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 39654571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 446
Semi-minor axis of confidence ellipse (meter) 383
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 112
Circular confidence region, given by single value of horizontal uncertainty (meter) 450.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.18976
Epicentral distance of station farthest from the epicenter (degree) 0.46675
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 39654571
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-01-23 16:41:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VVLD.HHZ. 2017-01-21T02:07:26.47 0.3 undecidable manual S 289 51.8037 50 0.26 67
IV.POFI.HHE. 2017-01-21T02:07:23.66 0.6 undecidable manual S 270 41.7249 50 0.15 47
IV.LPEL.HHZ. 2017-01-21T02:07:22.07 0.3 undecidable manual S 356 36.6411 50 -0.08 72
IV.SGG.HHN. 2017-01-21T02:07:22.38 0.6 undecidable manual S 160 39.1275 50 -0.43 44
IV.VAGA.HHZ. 2017-01-21T02:07:21.50 0.3 undecidable manual S 177 33.5442 50 0.18 71
IV.TRIV.HHN. 2017-01-21T02:07:19.79 0.6 undecidable manual S 79 28.1496 50 -0.1 49
IV.VVLD.HHZ. 2017-01-21T02:07:18.98 0.1 positive manual P 289 51.8037 50 -0.25 90
IV.CERA.HHZ. 2017-01-21T02:07:17.88 0.6 undecidable manual S 231 21.0678 116 0.08 49
IV.POFI.HHE. 2017-01-21T02:07:17.66 0.1 positive manual P 270 41.7249 50 -0.01 97
IV.SGG.HHN. 2017-01-21T02:07:17.28 0.1 undecidable manual P 160 39.1275 50 0.01 97
IV.VAGA.HHZ. 2017-01-21T02:07:16.27 0.1 positive manual P 177 33.5442 50 -0.14 95
IV.TRIV.HHN. 2017-01-21T02:07:16.05 0.1 undecidable manual P 79 28.1496 50 0.47 90
IV.LPEL.HHZ. 2017-01-21T02:07:16.70 0.1 undecidable manual P 356 36.6411 50 -0.18 94
IV.CERA.HHZ. 2017-01-21T02:07:14.36 0.1 positive manual P 231 21.0678 116 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CERA.HHE. ML:1.2 0.00011545 0.82 AML other m 2017-01-21T02:07:22.35
IV.CERA.HHN. ML:1.0 0.00007089999999999999 0.68 AML other m 2017-01-21T02:07:25.34
IV.LPEL.HHE. ML:1.5 0.000132 0.98 AML other m 2017-01-21T02:07:23.85
IV.LPEL.HHN. ML:1.5 0.0001115 0.12 AML other m 2017-01-21T02:07:23.09
IV.VAGA.HHE. ML:1.1 0.00005555 0.46 AML other m 2017-01-21T02:07:24.56
IV.VAGA.HHN. ML:1.2 0.00007195 1.06 AML other m 2017-01-21T02:07:26.06
IV.VVLD.HHE. ML:1.3 0.000057249999999999996 0.7 AML other m 2017-01-21T02:07:27.03
IV.VVLD.HHN. ML:1.3 0.00005685 0.5 AML other m 2017-01-21T02:07:28.22
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