Earthquake with magnitude of ML 1.4 on date 20-01-2017 and time 01:01:43 (Italy) in region 3 km W Campotosto (AQ)

A magnitude ML 1.4 earthquake occured in region: 3 km W Campotosto (AQ), on

  • 20-01-2017 00:01:43 (UTC)
  • 20-01-2017 01:01:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.55, 13.34 at 0 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Campotosto AQ 3 542 542
Capitignano AQ 5 665 1207
Montereale AQ 8 2581 3788
Amatrice RI 9 2657 6445
Crognaleto TE 12 1297 7742
Barete AQ 12 737 8479
Pizzoli AQ 13 4326 12805
Cagnano Amiterno AQ 14 1369 14174
Cittareale RI 16 482 14656
Cortino TE 16 656 15312
Fano Adriano TE 17 296 15608
Borbona RI 17 617 16225
Accumoli RI 17 667 16892
Pietracamela TE 18 271 17163
Posta RI 20 694 17857

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km N of L'Aquila (69753 inhabitants)
32 Km W of Teramo (54892 inhabitants)
56 Km E of Terni (111501 inhabitants)
67 Km W of Montesilvano (53738 inhabitants)
68 Km SE of Foligno (57155 inhabitants)
72 Km W of Chieti (51815 inhabitants)
73 Km W of Pescara (121014 inhabitants)
79 Km NE of Tivoli (56533 inhabitants)
79 Km NE of Guidonia Montecelio (88673 inhabitants)
99 Km SE of Perugia (166134 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
Rev 1000 ML 1.4 2017-01-20
00:01:43
42.55 13.34 0 2019-07-19
13:20:31
Bollettino Sismico Italiano INGV 50215291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-01-20 00:01:43 ± 0.23
Latitude 42.55 ± 0.01
Longitude 13.34 ± 0.02
Depth (km) 0 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 50215291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1570
Semi-minor axis of confidence ellipse (meter) 880
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 68
Circular confidence region, given by single value of horizontal uncertainty (meter) 1570
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 146
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.49
Epicentral distance of station closest to the epicenter (degree) 0.08903
Epicentral distance of station farthest from the epicenter (degree) 0.22303
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0
Num. used stations 4
Type of magnitude ML
Reference to an origin 50215291
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-03-26 08:19:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LNSS.HHZ. 2017-01-20T00:01:51.85 0.3 undecidable manual S 283 0.223 91 -0.13 75
IV.T1202.EHZ. 2017-01-20T00:01:50.77 0.3 undecidable manual S 331 0.17 91 0.83 61
IV.LNSS.HHZ. 2017-01-20T00:01:48.15 0.1 undecidable manual P 283 0.223 91 -0.2 98
IV.T1202.EHZ. 2017-01-20T00:01:47.69 0.1 undecidable manual P 331 0.17 91 0.52 92
IV.GIGS.HHZ. 2017-01-20T00:01:47.75 0.1 undecidable manual P 120 0.2014 91 -0.12 100
IV.T1247.HHZ. 2017-01-20T00:01:47.90 0.3 undecidable manual S 194 0.116 92 0.03 78
IV.T1247.HHZ. 2017-01-20T00:01:46.18 0.1 positive manual P 194 0.116 92 0.2 100
IV.T1299.EHZ. 2017-01-20T00:01:46.06 0.6 undecidable manual S 334 0.089 92 -0.77 42
IV.T1299.EHZ. 2017-01-20T00:01:44.88 0.1 undecidable manual P 334 0.089 92 -0.5 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1247.HHN. ML:1.4 0.0003294855 0.12 AML other m 2017-01-20T00:01:48.33
IV.T1247.HHE. ML:1.3 0.00029460095 0.18 AML other m 2017-01-20T00:01:48.38
IV.T1202.EHE. ML:1.4 0.0002043938 0.32 AML other m 2017-01-20T00:01:51.22
IV.T1202.EHN. ML:1.4 0.0002130819 0.18 AML other m 2017-01-20T00:01:52.24
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