Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 23-01-2017 and time 02:59:30 (Italy) in region 5 km NW Campotosto (AQ)

A magnitude ML 1.1 earthquake occured in region: 5 km NW Campotosto (AQ), on

  • 23-01-2017 01:59:30 (UTC)
  • 23-01-2017 02:59:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6000, 13.3470 at 3 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 5 542 542
Amatrice RI 6 2657 3199
Capitignano AQ 10 665 3864
Montereale AQ 12 2581 6445
Crognaleto TE 12 1297 7742
Accumoli RI 13 667 8409
Cortino TE 14 656 9065
Cittareale RI 15 482 9547
Fano Adriano TE 17 296 9843
Barete AQ 17 737 10580
Rocca Santa Maria TE 18 537 11117
Cagnano Amiterno AQ 19 1369 12486
Pizzoli AQ 19 4326 16812
Pietracamela TE 19 271 17083
Valle Castellana TE 20 977 18060
Acquasanta Terme AP 20 2916 20976
Arquata del Tronto AP 20 1178 22154
Borbona RI 20 617 22771

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km N of L'Aquila (69753 inhabitants)
30 Km W of Teramo (54892 inhabitants)
57 Km E of Terni (111501 inhabitants)
66 Km SE of Foligno (57155 inhabitants)
67 Km W of Montesilvano (53738 inhabitants)
73 Km W of Pescara (121014 inhabitants)
73 Km W of Chieti (51815 inhabitants)
84 Km NE of Tivoli (56533 inhabitants)
84 Km NE of Guidonia Montecelio (88673 inhabitants)
96 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
Reviewed
Rev100 		ML 1.1 2017-01-23
01:59:30		 42.6003 13.3467 3 2017-01-23
02:15:10		 Sala Sismica INGV-Roma 39620751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-01-23 01:59:30 ± 0.09
Latitude 42.6003 ± 0.0045
Longitude 13.3467 ± 0.0061
Depth (km) 3 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 39620751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 630
Semi-minor axis of confidence ellipse (meter) 300
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 230
Circular confidence region, given by single value of horizontal uncertainty (meter) 630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 171
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.37682
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 39620751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-01-23 02:15:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LPEL.HHZ. 2017-01-23T01:59:45.21 3.0 undecidable manual P -0.27 0
IV.T1216.EHZ. 2017-01-23T01:59:45.35 0.1 undecidable manual S 320 41.8248 94 -0.05 95
IV.T1220.EHZ. 2017-01-23T01:59:42.30 3.0 positive manual P 0.5 0
IV.T1212.EHZ. 2017-01-23T01:59:41.16 0.1 undecidable manual S 304 29.8479 95 -0.08 97
IV.LNSS.HHZ. 2017-01-23T01:59:39.47 0.1 undecidable manual S 271 25.0527 97 -0.11 97
IV.GIGS.HHZ. 2017-01-23T01:59:39.43 0.1 undecidable manual S 131 24.6531 97 -0.04 99
IV.T1216.EHZ. 2017-01-23T01:59:38.98 0.1 undecidable manual P 320 41.8248 94 -0.27 91
IV.T1218.EHZ. 2017-01-23T01:59:38.36 0.1 undecidable manual S 292 20.3685 98 0.36 93
IV.T1247.HHZ. 2017-01-23T01:59:37.15 0.1 undecidable manual S 193 18.0708 99 -0.04 100
IV.T1212.EHZ. 2017-01-23T01:59:36.73 0.1 undecidable manual P 304 29.8479 95 -0.12 96
IV.T1202.EHZ. 2017-01-23T01:59:36.59 0.1 undecidable manual S 319 15.1737 101 0.39 93
IV.LNSS.HHZ. 2017-01-23T01:59:35.98 0.1 positive manual P 271 25.0527 97 0.09 98
IV.GIGS.HHZ. 2017-01-23T01:59:35.51 0.1 undecidable manual P 131 24.6531 97 -0.31 93
IV.T1218.EHZ. 2017-01-23T01:59:35.40 0.1 undecidable manual P 292 20.3685 98 0.42 92
IV.RM33.EHZ. 2017-01-23T01:59:35.79 0.1 undecidable manual S 227 14.7741 101 -0.29 95
IV.T1202.EHZ. 2017-01-23T01:59:34.30 0.1 undecidable manual P 319 15.1737 101 0.36 94
IV.RM33.EHZ. 2017-01-23T01:59:34.15 0.1 undecidable manual P 227 14.7741 101 0.28 95
IV.T1247.HHZ. 2017-01-23T01:59:34.68 0.1 undecidable manual P 193 18.0708 99 0.17 97
IV.CAMP.HHZ. 2017-01-23T01:59:34.36 0.1 undecidable manual S 144 8.7801 108 0.31 96
IV.CAMP.HHZ. 2017-01-23T01:59:32.60 0.1 undecidable manual P 144 8.7801 108 -0.1 100
IV.T1299.EHZ. 2017-01-23T01:59:32.84 0.1 undecidable manual S 306 6.4935 114 -0.46 93
IV.T1299.EHZ. 2017-01-23T01:59:31.76 0.1 undecidable manual P 306 6.4935 114 -0.51 92
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:1.0 0.00007211071 0.16 AML other m 2017-01-23T01:59:39.59
IV.LNSS.HHN. ML:1.1 0.000080378015 0.1792 AML other m 2017-01-23T01:59:39.90
IV.RM33.EHN. ML:1.1 0.00013450000000000002 0.58 AML other m 2017-01-23T01:59:36.32
IV.RM33.EHE. ML:1.2 0.000185 0.38 AML other m 2017-01-23T01:59:36.80
IV.RM33.HNN. ML:1.1 0.000135021635 0.1088 AML other m 2017-01-23T01:59:36.32
IV.RM33.HNE. ML:1.2 0.000166466155 0.1408 AML other m 2017-01-23T01:59:36.80
IV.T1218.EHN. ML:0.9 0.000065889 0.224 AML other m 2017-01-23T01:59:38.87
IV.T1218.HNN. ML:0.8 0.000050546305 0.208 AML other m 2017-01-23T01:59:38.86
IV.T1247.HHN. ML:1.3 0.00019429769999999998 0.2592 AML other m 2017-01-23T01:59:37.31
IV.T1247.HHE. ML:1.1 0.0001147465 0.1392 AML other m 2017-01-23T01:59:38.70
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