Earthquake with magnitude of ML 0.6 on date 29-04-2012 and time 01:03:43 (Italy) in region 6 km W Norcia (PG)

A magnitude ML 0.6 earthquake occured in region: 6 km W Norcia (PG), on

  • 28-04-2012 23:03:43 (UTC)
  • 29-04-2012 01:03:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8140, 13.0290 at 16 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 6 4957 4957
Preci PG 7 724 5681
Cerreto di Spoleto PG 9 1075 6756
Cascia PG 11 3217 9973
Sellano PG 12 1079 11052
Poggiodomo PG 14 117 11169
Castelsantangelo sul Nera MC 14 281 11450
Visso MC 14 1107 12557
Vallo di Nera PG 14 364 12921
Ussita MC 17 444 13365
Sant'Anatolia di Narco PG 18 564 13929
Monteleone di Spoleto PG 19 599 14528
Scheggino PG 20 461 14989

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km SE of Foligno (57155 inhabitants)
42 Km NE of Terni (111501 inhabitants)
58 Km W of Teramo (54892 inhabitants)
60 Km NW of L'Aquila (69753 inhabitants)
62 Km SE of Perugia (166134 inhabitants)
87 Km NE of Viterbo (67173 inhabitants)
94 Km N of Guidonia Montecelio (88673 inhabitants)
96 Km N of Tivoli (56533 inhabitants)
98 Km W of Montesilvano (53738 inhabitants)
98 Km SW of Ancona (100861 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 1.6
ML 0.6
2012-04-28
23:03:43
42.814 13.029 17 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1364899
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-04-28 23:03:43 ± 0.25
Latitude 42.8140 ± 0.0135
Longitude 13.0290 ± 0.0221
Depth (km) 17 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1364899

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1775
Semi-minor axis of confidence ellipse (meter) 1326
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 50
Circular confidence region, given by single value of horizontal uncertainty (meter) 2343.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 157
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 8
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) 0.29048
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 1364899
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 03:17:45

Md:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 1364899
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 03:17:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTF.SHE. 2012-04-28T23:04:22.23 10.0 undecidable manual Pg 0 0 0
IV.MCIV.HHE. 2012-04-28T23:04:07.34 10.0 undecidable manual Pg 0 0 0
IV.SMA1.EHN. 2012-04-28T23:03:54.72 0.1 undecidable manual Sg 129 32.2455 -0.45 88
IV.CESI.HHE. 2012-04-28T23:03:52.60 0.1 undecidable manual Sg 335 23.4543 -0.346 90
IV.LNSS.HHZ. 2012-04-28T23:03:52.85 0.1 undecidable manual Sg 178 23.4543 -0.102 95
IV.SMA1.EHN. 2012-04-28T23:03:50.64 0.1 undecidable manual Pg 129 32.2455 0.229 93
IV.GMB.BHE. 2012-04-28T23:03:50.22 10.0 undecidable manual Pg 0 0 0
IV.CESI.HHE. 2012-04-28T23:03:49.21 0.1 undecidable manual Pg 335 23.4543 0.081 98
IV.LNSS.HHZ. 2012-04-28T23:03:49.36 0.1 undecidable manual Pg 178 23.4543 0.226 95
IV.NRCA.HHE. 2012-04-28T23:03:49.63 0.1 undecidable manual Sg 73 7.2927 -0.042 100
IV.NRCA.HHE. 2012-04-28T23:03:47.55 0.1 undecidable manual Pg 73 7.2927 0.307 95
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