Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 21-01-2017 and time 20:30:21 (Italy) in region 4 km E Campotosto (AQ)

A magnitude ML 1.5 earthquake occured in region: 4 km E Campotosto (AQ), on

  • 21-01-2017 19:30:21 (UTC)
  • 21-01-2017 20:30:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5580, 13.4210 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.

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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
Campotosto AQ 4 542 542
Crognaleto TE 5 1297 1839
Fano Adriano TE 10 296 2135
Cortino TE 10 656 2791
Capitignano AQ 11 665 3456
Pietracamela TE 12 271 3727
Amatrice RI 13 2657 6384
Montereale AQ 15 2581 8965
Barete AQ 16 737 9702
Rocca Santa Maria TE 17 537 10239
Pizzoli AQ 17 4326 14565
Montorio al Vomano TE 18 8218 22783
Tossicia TE 19 1406 24189
Cagnano Amiterno AQ 19 1369 25558

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km N of L'Aquila (69753 inhabitants)
26 Km W of Teramo (54892 inhabitants)
60 Km W of Montesilvano (53738 inhabitants)
63 Km E of Terni (111501 inhabitants)
66 Km W of Chieti (51815 inhabitants)
66 Km W of Pescara (121014 inhabitants)
73 Km SE of Foligno (57155 inhabitants)
84 Km NE of Tivoli (56533 inhabitants)
84 Km NE of Guidonia Montecelio (88673 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 1.5 2017-01-21
19:30:21		 42.5585 13.4212 2 2017-01-21
19:43:31		 Sala Sismica INGV-Roma 39521311
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-01-21 19:30:21 ± 0.19
Latitude 42.5585 ± 0.0090
Longitude 13.4212 ± 0.0134
Depth (km) 2 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 39521311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1012
Semi-minor axis of confidence ellipse (meter) 821
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 58
Circular confidence region, given by single value of horizontal uncertainty (meter) 1010.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 157
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.54
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.60255
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 39521311
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-01-21 19:43:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.APEC.HHZ. 2017-01-21T19:31:05.00 3.0 undecidable manual S 0.91 0
IV.PIGN.HHZ. 2017-01-21T19:31:04.81 3.0 undecidable manual S -0.67 0
IV.LIK.EHZ.01 2017-01-21T19:30:55.49 3.0 undecidable manual S 0.29 0
IV.FDMO.HHZ. 2017-01-21T19:30:42.26 0.1 undecidable manual S 333 59.5959 50 0.25 90
IV.PP3.EHZ. 2017-01-21T19:30:40.21 3.0 undecidable manual P -0.14 0
IV.MC2.EHZ. 2017-01-21T19:30:35.36 0.1 undecidable manual S 334 43.5231 93 -1.4 58
IV.T1212.EHZ. 2017-01-21T19:30:34.86 0.1 undecidable manual S 305 37.4292 93 0.19 95
IV.T1220.EHZ. 2017-01-21T19:30:34.59 0.1 undecidable manual P 336 66.8775 50 0.06 93
IV.FAGN.HHZ. 2017-01-21T19:30:32.72 0.1 undecidable manual S 158 35.1426 93 -1.14 68
IV.LNSS.HHZ. 2017-01-21T19:30:32.87 0.3 undecidable manual S 279 31.4463 94 0.26 71
IV.FDMO.HHZ. 2017-01-21T19:30:32.83 0.1 undecidable manual P 333 59.5959 50 -0.57 83
IV.MC2.EHZ. 2017-01-21T19:30:31.00 0.1 undecidable manual P 334 43.5231 93 0.62 84
IV.T1212.EHZ. 2017-01-21T19:30:29.58 0.1 undecidable manual P 305 37.4292 93 0.41 91
IV.GIGS.HHZ. 2017-01-21T19:30:28.24 0.1 undecidable manual S 133 17.0718 97 0.62 88
IV.FAGN.HHZ. 2017-01-21T19:30:28.21 0.1 undecidable manual P 158 35.1426 93 -0.49 90
IV.RM33.EHZ. 2017-01-21T19:30:28.03 0.1 undecidable manual S 252 17.7711 97 0.17 99
IV.LNSS.HHZ. 2017-01-21T19:30:28.44 0.6 undecidable manual P 279 31.4463 94 0.46 46
IV.T1299.EHZ. 2017-01-21T19:30:26.28 0.1 undecidable manual S 307 14.0748 99 -0.33 97
IV.T1247.HHZ. 2017-01-21T19:30:26.98 0.1 undecidable manual S 218 16.3725 97 -0.42 94
IV.RM33.EHZ. 2017-01-21T19:30:25.76 0.1 positive manual P 252 17.7711 97 0.52 92
IV.GIGS.HHZ. 2017-01-21T19:30:25.88 0.3 positive manual P 133 17.0718 97 0.79 62
IV.T1247.HHZ. 2017-01-21T19:30:25.11 0.1 undecidable manual P 218 16.3725 97 0.14 100
IV.T1299.EHZ. 2017-01-21T19:30:24.15 0.1 undecidable manual P 307 14.0748 99 -0.37 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FAGN.HHN. ML:1.4 0.0001026 0.28 AML other m 2017-01-21T19:30:34.73
IV.FAGN.HHE. ML:1.5 0.0001255 0.32 AML other m 2017-01-21T19:30:37.67
IV.GIGS.HHN. ML:1.0 0.0000918 0.12 AML other m 2017-01-21T19:30:28.42
IV.GIGS.HHE. ML:1.0 0.0000906 0.24 AML other m 2017-01-21T19:30:28.43
IV.LNSS.HHN. ML:1.5 0.000156 0.12 AML other m 2017-01-21T19:30:33.53
IV.LNSS.HHE. ML:1.3 0.0000923 1.3 AML other m 2017-01-21T19:30:34.84
IV.RM33.HNE. ML:1.7 0.0004575 0.24 AML other m 2017-01-21T19:30:28.36
IV.RM33.EHE. ML:1.7 0.0004525 0.24 AML other m 2017-01-21T19:30:28.36
IV.RM33.HNN. ML:1.6 0.0003395 0.26 AML other m 2017-01-21T19:30:28.17
IV.RM33.EHN. ML:1.6 0.00034050000000000004 0.24 AML other m 2017-01-21T19:30:28.30
IV.T1247.HHN. ML:1.9 0.000841 0.32 AML other m 2017-01-21T19:30:27.23
IV.T1247.HHE. ML:2.1 0.001365 0.36 AML other m 2017-01-21T19:30:27.28
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