Earthquake with magnitude of ML 2.0 on date 20-01-2017 and time 01:41:48 (Italy) in region 5 km SW Accumoli (RI)

A magnitude ML 2.0 earthquake occured in region: 5 km SW Accumoli (RI), on

  • 20-01-2017 00:41:48 (UTC)
  • 20-01-2017 01:41:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6560, 13.2110 at 8 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
Accumoli RI 5 667 667
Cittareale RI 6 482 1149
Amatrice RI 7 2657 3806
Montereale AQ 15 2581 6387
Arquata del Tronto AP 15 1178 7565
Capitignano AQ 17 665 8230
Campotosto AQ 17 542 8772
Borbona RI 17 617 9389
Posta RI 17 694 10083
Cascia PG 18 3217 13300
Norcia PG 18 4957 18257

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NW of L'Aquila (69753 inhabitants)
40 Km W of Teramo (54892 inhabitants)
47 Km E of Terni (111501 inhabitants)
53 Km SE of Foligno (57155 inhabitants)
78 Km W of Montesilvano (53738 inhabitants)
83 Km NE of Guidonia Montecelio (88673 inhabitants)
84 Km SE of Perugia (166134 inhabitants)
84 Km NE of Tivoli (56533 inhabitants)
85 Km W of Pescara (121014 inhabitants)
85 Km W of Chieti (51815 inhabitants)
94 Km E of Viterbo (67173 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
Bulletin
Rev1000
ML 2.0 2017-01-20
00:41:48
42.6558 13.2113 8 2019-07-19
13:20:32
Bollettino Sismico Italiano INGV 50220721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-01-20 00:41:48 ± 0.13
Latitude 42.6558 ± 0.0090
Longitude 13.2113 ± 0.0110
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 50220721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 905
Semi-minor axis of confidence ellipse (meter) 746
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 201
Circular confidence region, given by single value of horizontal uncertainty (meter) 910.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 61
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47664
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 50220721
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-09-18 13:51:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LPEL.HHZ. 2017-01-20T00:42:18.76 0.6 undecidable manual S -3.81 0
IV.FDMO.HHZ. 2017-01-20T00:42:04.36 0.6 undecidable manual S 347 43.4232 50 0.85 40
IV.ARRO.EHZ. 2017-01-20T00:42:01.74 0.6 undecidable manual S 257 37.3293 50 -0.16 50
IV.T1215.EHZ. 2017-01-20T00:42:00.34 0.6 undecidable manual S 300 32.2455 104 0.05 52
IV.CESI.HHZ. 2017-01-20T00:41:58.22 1.0 negative manual P 327 46.0206 50 0.54 23
IV.T1220.EHZ. 2017-01-20T00:41:58.31 0.6 positive manual P 349 51.4152 50 -0.19 48
IV.OFFI.HHZ. 2017-01-20T00:41:58.25 0.3 positive manual P 51 49.5171 50 0.04 75
IV.FAGN.HHZ. 2017-01-20T00:41:58.83 0.6 positive manual P 145 52.9026 50 0.09 49
IV.GUMA.HHZ. 2017-01-20T00:41:57.74 0.6 undecidable manual P 13 46.2204 50 0.03 51
IV.T1247.HHZ. 2017-01-20T00:41:57.52 0.6 undecidable manual S 163 24.8529 108 -0.27 50
IV.FIAM.HHZ. 2017-01-20T00:41:57.90 0.1 undecidable manual P 190 43.7229 50 0.58 89
IV.FDMO.HHZ. 2017-01-20T00:41:56.94 0.1 undecidable manual P 347 43.4232 50 -0.34 95
IV.GIGS.HHZ. 2017-01-20T00:41:56.14 0.1 undecidable manual P 127 37.1295 50 -0.17 100
IV.T1215.EHZ. 2017-01-20T00:41:55.18 1.0 undecidable manual P 300 32.2455 104 -0.24 25
IV.CAMP.HHZ. 2017-01-20T00:41:55.43 0.3 undecidable manual S 129 20.9679 111 -1.09 56
IV.ARRO.EHZ. 2017-01-20T00:41:55.42 0.1 undecidable manual P 257 37.3293 50 -0.92 78
IV.T1247.HHZ. 2017-01-20T00:41:54.76 0.1 positive manual P 163 24.8529 108 0.79 85
IV.LNSS.HHZ. 2017-01-20T00:41:54.77 0.6 undecidable manual S 247 15.1737 117 0.09 53
IV.CAMP.HHZ. 2017-01-20T00:41:53.65 0.1 positive manual P 129 20.9679 111 0.41 98
IV.LNSS.HHZ. 2017-01-20T00:41:52.18 0.3 positive manual P 247 15.1737 117 0 81
IV.T1299.HNZ. 2017-01-20T00:41:50.74 0.3 undecidable manual P 112 6.2937 142 -0.03 81
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHE. ML:1.5 0.00013215 0.8 AML other m 2017-01-20T00:42:07.00
IV.ARRO.EHN. ML:1.6 0.00015300000000000003 1.5 AML other m 2017-01-20T00:42:08.13
IV.CAMP.HHE. ML:2.3 0.001418 1.14 AML other m 2017-01-20T00:41:56.60
IV.CAMP.HHN. ML:2.1 0.0010034999999999998 0.24 AML other m 2017-01-20T00:41:56.62
IV.FAGN.HHN. ML:2.0 0.0002755 0.24 AML other m 2017-01-20T00:42:07.25
IV.FAGN.HHE. ML:2.2 0.0003705 0.38 AML other m 2017-01-20T00:42:09.74
IV.FDMO.HHN. ML:1.5 0.00010664999999999999 0.18 AML other m 2017-01-20T00:42:08.48
IV.FDMO.HHE. ML:1.5 0.00008779999999999999 0.16 AML other m 2017-01-20T00:42:11.20
IV.GIGS.HHE. ML:1.5 0.00011545 1.2 AML other m 2017-01-20T00:42:00.81
IV.GIGS.HHN. ML:1.4 0.0001031 0.58 AML other m 2017-01-20T00:42:02.32
IV.GUMA.HHE. ML:2.1 0.00039249999999999995 0.72 AML other m 2017-01-20T00:42:09.51
IV.GUMA.HHN. ML:2.1 0.0003795 1.52 AML other m 2017-01-20T00:42:08.02
IV.LNSS.HHN. ML:1.8 0.0007035 1.62 AML other m 2017-01-20T00:41:59.11
IV.LNSS.HHE. ML:1.8 0.000683 0.52 AML other m 2017-01-20T00:42:00.33
IV.T1220.HNE. ML:2.2 0.000381 0.34 AML other m 2017-01-20T00:42:12.42
IV.T1220.HNN. ML:2.1 0.000313 0.5 AML other m 2017-01-20T00:42:15.26
IV.T1247.HHE. ML:2.3 0.0012250000000000002 1.5 AML other m 2017-01-20T00:42:01.06
IV.T1247.HHN. ML:2.4 0.00148 0.2 AML other m 2017-01-20T00:41:59.40
IV.T1299.EHN. ML:2.2 0.002765 0.18 AML other m 2017-01-20T00:41:54.25
IV.T1299.HNN. ML:2.2 0.00269 0.2 AML other m 2017-01-20T00:41:54.24
IV.T1299.EHE. ML:2.0 0.0018499999999999999 0.26 AML other m 2017-01-20T00:41:54.22
IV.T1299.HNE. ML:2.0 0.00172 0.24 AML other m 2017-01-20T00:41:54.22
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