Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 22-02-2017 and time 15:49:40 (Italy) in region 4 km S Campotosto (AQ)

A magnitude ML 1.6 earthquake occured in region: 4 km S Campotosto (AQ), on

  • 22-02-2017 14:49:40 (UTC)
  • 22-02-2017 15:49:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5240, 13.3620 at 10 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
Capitignano AQ 5 665 1207
Montereale AQ 10 2581 3788
Crognaleto TE 10 1297 5085
Barete AQ 10 737 5822
Pizzoli AQ 11 4326 10148
Cagnano Amiterno AQ 13 1369 11517
Amatrice RI 13 2657 14174
Fano Adriano TE 15 296 14470
Pietracamela TE 16 271 14741
Cortino TE 16 656 15397
Borbona RI 19 617 16014
Scoppito AQ 19 3727 19741
L'Aquila AQ 19 69753 89494
Cittareale RI 20 482 89976

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km N of L'Aquila (69753 inhabitants)
32 Km W of Teramo (54892 inhabitants)
59 Km E of Terni (111501 inhabitants)
65 Km W of Montesilvano (53738 inhabitants)
69 Km W of Chieti (51815 inhabitants)
70 Km W of Pescara (121014 inhabitants)
72 Km SE of Foligno (57155 inhabitants)
78 Km NE of Tivoli (56533 inhabitants)
78 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 1.6 2017-02-22
14:49:40		 42.524 13.3625 10 2017-02-22
14:55:50		 Sala Sismica INGV-Roma 41485911
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-02-22 14:49:40 ± 0.09
Latitude 42.5240 ± 0.0054
Longitude 13.3625 ± 0.0049
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 41485911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 609
Semi-minor axis of confidence ellipse (meter) 386
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 187
Circular confidence region, given by single value of horizontal uncertainty (meter) 610.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.45686
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 41485911
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-02-22 14:55:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TDS.HHZ. 2017-02-22T14:50:47.53 3.0 undecidable manual Pg 14.24 0
IV.ISTR.HHZ. 2017-02-22T14:50:40.48 3.0 undecidable manual Pn 2.78 0
IV.SBPO.HNZ. 2017-02-22T14:50:38.01 3.0 undecidable manual Sn -0.4 0
IV.CAPR.HNZ. 2017-02-22T14:50:34.37 3.0 undecidable manual Pg 13.41 0
IV.NDIM.HHZ. 2017-02-22T14:50:30.99 3.0 undecidable manual Sn -4.43 0
IV.SARZ.HHZ. 2017-02-22T14:50:17.50 3.0 undecidable manual Pn -3.97 0
IV.SBPO.HNZ. 2017-02-22T14:50:13.84 3.0 negative manual Pg 5 0
IV.PRMA.HHZ. 2017-02-22T14:50:13.43 3.0 positive manual Pn 3.68 0
IV.MRB1.HHZ. 2017-02-22T14:50:11.62 3.0 undecidable manual Pg 2.88 0
IV.ZCCA.HHZ. 2017-02-22T14:50:00.31 3.0 undecidable manual Pn -0.9 0
IV.T1215.EHZ. 2017-02-22T14:49:57.06 0.3 undecidable manual S 308 50.7159 50 0.01 71
IV.MMO1.EHZ. 2017-02-22T14:49:55.07 0.3 undecidable manual S 356 41.7249 50 0.43 66
IV.NRCA.HHZ. 2017-02-22T14:49:53.87 0.3 undecidable manual S 330 39.8268 50 -0.27 68
IV.TERO.HHZ. 2017-02-22T14:49:49.31 0.3 undecidable manual S 61 22.5552 113 0.05 74
IV.VCEL.EHZ. 2017-02-22T14:49:49.73 0.6 negative manual P 110 41.7249 50 0.97 36
IV.MC2.EHZ. 2017-02-22T14:49:49.33 0.6 undecidable manual S 0.44 1.26
IV.T1215.EHZ. 2017-02-22T14:49:49.93 0.1 undecidable manual P 308 50.7159 50 -0.22 90
IV.MMO1.EHZ. 2017-02-22T14:49:48.78 0.1 undecidable manual P 356 41.7249 50 0.01 96
IV.NRCA.HHZ. 2017-02-22T14:49:48.20 0.1 undecidable manual P 330 39.8268 50 -0.28 91
IV.CPGN.EHZ. 2017-02-22T14:49:48.61 3.0 undecidable manual Pg 1.04 0
IV.GIGS.HHZ. 2017-02-22T14:49:47.91 0.1 undecidable manual S 114 18.87 117 -0.2 96
IV.T1214.EHZ. 2017-02-22T14:49:47.00 3.0 undecidable manual Sn -3.24 0
IV.RM33.EHZ. 2017-02-22T14:49:46.09 0.1 undecidable manual S 262 12.1767 128 -0.06 100
IV.T1299.EHZ. 2017-02-22T14:49:46.75 0.1 undecidable manual S 332 13.875 125 0.14 98
IV.TERO.HHZ. 2017-02-22T14:49:45.47 0.1 positive manual P 61 22.5552 113 -0.19 96
IV.T1299.EHZ. 2017-02-22T14:49:44.19 0.1 undecidable manual P 332 13.875 125 0.06 100
IV.GIGS.HHZ. 2017-02-22T14:49:44.92 0.6 positive manual P 114 18.87 117 -0.08 49
IV.T1247.HHZ. 2017-02-22T14:49:43.79 0.1 positive manual P 210 10.5783 133 0.18 98
IV.RM33.EHZ. 2017-02-22T14:49:43.94 0.1 undecidable manual P 262 12.1767 128 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CPGN.EHN. ML:2.2 0.00007505 1.58 AML other m 2017-02-22T14:50:17.20
IV.CPGN.EHE. ML:2.2 0.00006575 0.42 AML other m 2017-02-22T14:50:24.23
IV.LPEL.HHN. ML:1.7 0.0000613 0.96 AML other m 2017-02-22T14:50:10.26
IV.LPEL.HHE. ML:1.7 0.0000624 0.56 AML other m 2017-02-22T14:50:10.52
IV.NRCA.HHN. ML:1.5 0.0001094 0.14 AML other m 2017-02-22T14:49:54.51
IV.NRCA.HHE. ML:1.5 0.0001035 0.14 AML other m 2017-02-22T14:49:54.61
IV.RM33.EHE. ML:1.5 0.0003355 0.28 AML other m 2017-02-22T14:49:46.24
IV.RM33.EHN. ML:1.2 0.00016149999999999997 0.7 AML other m 2017-02-22T14:49:46.47
IV.SNTG.HHN. ML:1.9 0.00009615 1.78 AML other m 2017-02-22T14:49:44.89
IV.SNTG.HHE. ML:2.0 0.00012005 1.78 AML other m 2017-02-22T14:49:44.89
IV.T1247.HHN. ML:1.8 0.0007145000000000001 0.12 AML other m 2017-02-22T14:49:46.00
IV.T1247.HHE. ML:1.6 0.0005625 0.16 AML other m 2017-02-22T14:49:48.22
IV.T1299.EHN. ML:1.1 0.000141 0.18 AML other m 2017-02-22T14:49:46.83
IV.T1299.EHE. ML:0.9 0.00007935 0.12 AML other m 2017-02-22T14:49:46.76
IV.TERO.HHE. ML:1.2 0.00010915 0.08 AML other m 2017-02-22T14:49:50.06
IV.TERO.HHN. ML:1.2 0.00009884999999999999 1.66 AML other m 2017-02-22T14:49:50.09
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