Earthquake with magnitude of ML 1.3 on date 03-10-2012 and time 21:47:22 (Italy) in region 5 km W Norcia (PG)

A magnitude ML 1.3 earthquake occured in region: 5 km W Norcia (PG), on

  • 03-10-2012 19:47:22 (UTC)
  • 03-10-2012 21:47:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7840, 13.0280 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
Norcia PG 5 4957 4957
Cascia PG 7 3217 8174
Cerreto di Spoleto PG 10 1075 9249
Preci PG 11 724 9973
Poggiodomo PG 11 117 10090
Vallo di Nera PG 14 364 10454
Sellano PG 14 1079 11533
Monteleone di Spoleto PG 16 599 12132
Castelsantangelo sul Nera MC 16 281 12413
Sant'Anatolia di Narco PG 17 564 12977
Visso MC 17 1107 14084
Scheggino PG 18 461 14545
Ussita MC 20 444 14989

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km SE of Foligno (57155 inhabitants)
40 Km NE of Terni (111501 inhabitants)
57 Km NW of L'Aquila (69753 inhabitants)
57 Km W of Teramo (54892 inhabitants)
63 Km SE of Perugia (166134 inhabitants)
86 Km E of Viterbo (67173 inhabitants)
91 Km N of Guidonia Montecelio (88673 inhabitants)
93 Km N of Tivoli (56533 inhabitants)
97 Km W of Montesilvano (53738 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 1.3 2012-10-03
19:47:22
42.7845 13.0197 8 2014-10-21
12:08:56
Sala Sismica INGV-Roma 2286781
Bulletin
Rev1000
ML 1.3 2012-10-03
19:47:22
42.7842 13.0282 8 2014-09-19
08:14:18
Bollettino Sismico Italiano INGV 3112481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-10-03 19:47:22 ± 0.18
Latitude 42.7842 ± 0.0036
Longitude 13.0282 ± 0.0172
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 3112481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 986
Semi-minor axis of confidence ellipse (meter) 939
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 89
Circular confidence region, given by single value of horizontal uncertainty (meter) 990.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 193
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.08004
Epicentral distance of station farthest from the epicenter (degree) 0.27249
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 2286781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2012-10-03 19:52:58

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 2
Type of magnitude ML
Reference to an origin 3112481
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2014-09-18 12:45:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2012-10-03T19:47:32.73 0.3 undecidable manual S 10 28.4493 106 -0.17 73
IV.LNSS.HHZ. 2012-10-03T19:47:30.04 0.6 undecidable manual S 177 20.1687 113 -0.14 50
IV.FDMO.HHZ. 2012-10-03T19:47:28.58 0.1 undecidable manual P 10 28.4493 106 0.03 100
IV.SMA1.EHZ. 2012-10-03T19:47:28.85 0.1 undecidable manual P 124 30.2475 105 -0.06 99
IV.LNSS.HHZ. 2012-10-03T19:47:27.05 0.3 positive manual P 177 20.1687 113 0.06 76
IV.NRCA.HHZ. 2012-10-03T19:47:26.75 0.6 undecidable manual S 52 8.88 133 -0.11 51
IV.NRCA.HHZ. 2012-10-03T19:47:25.31 0.1 negative manual P 52 8.88 133 0.25 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHN. ML:1.1 0.00010539999999999999 1 AML other m 2012-10-03T19:47:30.26
IV.LNSS.HHE. ML:1.1 0.00008735 0.96 AML other m 2012-10-03T19:47:30.33
IV.NRCA.HHN. ML:1.4 0.00033499999999999996 0.06 AML other m 2012-10-03T19:47:26.84
IV.NRCA.HHE. ML:1.7 0.0007589999999999999 0.16 AML other m 2012-10-03T19:47:26.97
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