Earthquake with magnitude of ML 1.2 on date 20-01-2017 and time 16:51:09 (Italy) in region NW Cittareale (RI)

A magnitude ML 1.2 earthquake occured in region: NW Cittareale (RI), on

  • 20-01-2017 15:51:09 (UTC)
  • 20-01-2017 16:51:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6190, 13.1600 at 2 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
Cittareale RI 0 482 482
Amatrice RI 11 2657 3139
Accumoli RI 11 667 3806
Posta RI 12 694 4500
Borbona RI 12 617 5117
Montereale AQ 13 2581 7698
Capitignano AQ 16 665 8363
Cascia PG 16 3217 11580
Leonessa RI 17 2435 14015
Monteleone di Spoleto PG 17 599 14614
Campotosto AQ 19 542 15156
Cagnano Amiterno AQ 19 1369 16525

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NW of L'Aquila (69753 inhabitants)
43 Km E of Terni (111501 inhabitants)
45 Km W of Teramo (54892 inhabitants)
53 Km SE of Foligno (57155 inhabitants)
77 Km NE of Guidonia Montecelio (88673 inhabitants)
79 Km NE of Tivoli (56533 inhabitants)
82 Km W of Montesilvano (53738 inhabitants)
83 Km SE of Perugia (166134 inhabitants)
88 Km W of Chieti (51815 inhabitants)
88 Km W of Pescara (121014 inhabitants)
89 Km E of Viterbo (67173 inhabitants)
98 Km NE of Roma (2864731 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 1.2 2017-01-20
15:51:09
42.6193 13.1603 2 2017-01-20
16:08:48
Sala Sismica INGV-Roma 39405731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-01-20 15:51:09 ± 0.63
Latitude 42.6193 ± 0.0135
Longitude 13.1603 ± 0.0293
Depth (km) 2 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 39405731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2641
Semi-minor axis of confidence ellipse (meter) 880
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 297
Circular confidence region, given by single value of horizontal uncertainty (meter) 2640.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 281
Number of associated phases, regardless of their use for origin computation 5
Number of defining phases 5
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.09083
Epicentral distance of station farthest from the epicenter (degree) 0.12950
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 2
Type of magnitude ML
Reference to an origin 39405731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-01-20 16:08:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RM33.EHZ. 2017-01-20T15:51:14.25 0.1 undecidable manual S 160 12.9759 101 0.06 100
IV.T1299.EHZ. 2017-01-20T15:51:13.12 0.1 undecidable manual S 81 10.0788 104 -0.07 100
IV.RM33.EHZ. 2017-01-20T15:51:12.00 0.6 positive manual P 160 12.9759 101 -0.25 48
IV.SMA1.EHZ. 2017-01-20T15:51:12.72 0.1 undecidable manual P 85 14.3745 100 0.21 96
IV.T1299.EHZ. 2017-01-20T15:51:11.52 0.6 undecidable manual P 81 10.0788 104 -0.15 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHN. ML:0.9 0.00011863405 0.2304 AML other m 2017-01-20T15:51:14.39
IV.RM33.EHE. ML:1.0 0.0001456168 0.256 AML other m 2017-01-20T15:51:14.51
IV.RM33.HNN. ML:1.3 0.00028802045 0.2944 AML other m 2017-01-20T15:51:25.24
IV.RM33.HNE. ML:1.6 0.0004884773500000001 0.2944 AML other m 2017-01-20T15:51:25.16
IV.T1299.EHN. ML:0.2 0.00003098785 0.2688 AML other m 2017-01-20T15:51:15.81
IV.T1299.HNN. ML:1.2 0.00029527645 0.2304 AML other m 2017-01-20T15:51:23.65
IV.T1299.EHE. ML:1.2 0.00031330215 0.2816 AML other m 2017-01-20T15:51:23.83
IV.T1299.HNE. ML:1.2 0.00031678450000000003 0.2688 AML other m 2017-01-20T15:51:23.96
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download