Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 17-02-2010 and time 20:18:52 (UTC) in region 6 km E Norcia (PG)

A magnitude ML 2.0 earthquake occured in region: 6 km E Norcia (PG), on

  • 17-02-2010 20:18:52 (UTC)
  • 17-02-2010 21:18:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8120, 13.1620 at 9 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.

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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
Norcia PG 6 4957 4957
Castelsantangelo sul Nera MC 9 281 5238
Arquata del Tronto AP 12 1178 6416
Preci PG 13 724 7140
Montegallo AP 14 523 7663
Visso MC 15 1107 8770
Accumoli RI 15 667 9437
Ussita MC 15 444 9881
Cascia PG 16 3217 13098
Montemonaco AP 17 604 13702

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Foligno (57155 inhabitants)
48 Km W of Teramo (54892 inhabitants)
50 Km NE of Terni (111501 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
71 Km E of Perugia (166134 inhabitants)
87 Km W of Montesilvano (53738 inhabitants)
94 Km SW of Ancona (100861 inhabitants)
94 Km W of Pescara (121014 inhabitants)
97 Km E of Viterbo (67173 inhabitants)
97 Km NE of Guidonia Montecelio (88673 inhabitants)
97 Km NW of Chieti (51815 inhabitants)
99 Km NE of Tivoli (56533 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 		Md 2.1
ML 2.0 		2010-02-17
20:18:52		 42.812 13.162 9 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 1013989
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2010-02-17 20:18:52 ± 0.07
Latitude 42.8120 ± 0.0036
Longitude 13.1620 ± 0.0061
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1013989

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 504
Semi-minor axis of confidence ellipse (meter) 344
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 259
Circular confidence region, given by single value of horizontal uncertainty (meter) 640.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 68
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.92360
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1013989
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 19:27:21

Md:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1013989
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 19:27:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SBPO.HHN. 2010-02-17T20:19:35.52 10.0 undecidable manual Pg 0 0 0
IV.MGAB.HHN. 2010-02-17T20:19:21.06 10.0 undecidable manual Pg 0 0 0
IV.SDI.SHZ. 2010-02-17T20:19:18.29 10.0 undecidable manual Pg 0 0 0
IV.ARVD.HHE. 2010-02-17T20:19:16.63 0.3 undecidable manual Sg 347 78.1662 0.561 60
IV.VCEL.EHE. 2010-02-17T20:19:14.38 0.3 undecidable manual Sg 130 72.2721 -0.111 67
IV.FAGN.HHE. 2010-02-17T20:19:13.77 0.3 undecidable manual Sg 150 69.7746 -0.054 69
IV.FIAM.HHN. 2010-02-17T20:19:11.51 0.3 undecidable manual Sg 183 60.495 0.156 68
IV.MNS.HHZ. 2010-02-17T20:19:11.74 0.1 undecidable manual Sg 220 61.494 0.119 92
IV.T0104.HHE. 2010-02-17T20:19:09.39 0.3 undecidable manual Sg 164 52.2033 0.247 68
IV.CESX.HHN. 2010-02-17T20:19:09.64 0.3 undecidable manual Sg 245 52.4031 0.43 65
IV.FSSB.HHN. 2010-02-17T20:19:09.73 0.3 undecidable manual Pg 342 102.5196 -0.024 65
IV.CRE.HHE. 2010-02-17T20:19:08.96 10.0 undecidable manual Pg 0 0 0
IV.T0401.EHZ. 2010-02-17T20:19:07.87 0.3 undecidable manual Sg 52 44.8218 0.686 61
IV.MURB.HHN. 2010-02-17T20:19:07.28 10.0 undecidable manual Pg 0 0 0
IV.TERO.HHE. 2010-02-17T20:19:05.79 0.3 undecidable manual Sg 120 41.7249 -0.557 64
IV.VCEL.EHE. 2010-02-17T20:19:05.23 0.3 undecidable manual Pg 130 72.2721 0.147 67
IV.ARVD.HHE. 2010-02-17T20:19:05.81 0.3 undecidable manual Pg 347 78.1662 -0.178 66
IV.CAMP.HHZ. 2010-02-17T20:19:04.47 0.3 undecidable manual Sg 147 36.741 -0.537 65
IV.FAGN.HHE. 2010-02-17T20:19:04.63 0.3 undecidable manual Pg 150 69.7746 -0.062 68
IV.GUMA.HHZ. 2010-02-17T20:19:03.40 0.3 undecidable manual Sg 27 31.1466 -0.045 74
IV.MNS.HHZ. 2010-02-17T20:19:03.29 0.3 undecidable manual Pg 220 61.494 -0.133 68
IV.CESX.HHN. 2010-02-17T20:19:02.24 0.3 undecidable manual Pg 245 52.4031 0.213 68
IV.CESI.HHZ. 2010-02-17T20:19:02.37 0.1 undecidable manual Sg 316 29.8479 -0.652 84
IV.FIAM.HHN. 2010-02-17T20:19:02.92 0.3 undecidable manual Pg 183 60.495 -0.344 66
IV.FDMO.HHE. 2010-02-17T20:19:01.18 0.3 undecidable manual Sg 346 25.6521 -0.422 69
IV.T0401.EHZ. 2010-02-17T20:19:01.50 0.1 undecidable manual Pg 52 44.8218 0.643 82
IV.SMA1.EHZ. 2010-02-17T20:19:01.62 0.1 undecidable manual Sg 145 24.6531 0.342 93
IV.T0104.HHE. 2010-02-17T20:19:01.88 0.3 undecidable manual Pg 164 52.2033 -0.108 70
IV.CAMP.HHZ. 2010-02-17T20:18:59.21 0.3 undecidable manual Pg 147 36.741 -0.391 68
IV.TERO.HHE. 2010-02-17T20:18:59.91 0.3 undecidable manual Pg 120 41.7249 -0.469 66
IV.CESI.HHZ. 2010-02-17T20:18:58.33 0.1 undecidable manual Pg 316 29.8479 -0.127 97
IV.GUMA.HHZ. 2010-02-17T20:18:58.74 0.3 undecidable manual Pg 27 31.1466 0.043 74
IV.SMA1.EHZ. 2010-02-17T20:18:57.44 0.1 undecidable manual Pg 145 24.6531 -0.01 100
IV.FDMO.HHE. 2010-02-17T20:18:57.47 0.3 undecidable manual Pg 346 25.6521 -0.167 73
IV.NRCA.HHE. 2010-02-17T20:18:55.91 0.1 undecidable manual Sg 302 4.4955 0.294 98
IV.NRCA.HHE. 2010-02-17T20:18:54.64 0.3 undecidable manual Pg 302 4.4955 0.463 71
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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