Earthquake with magnitude of ML 1.1 on date 14-03-2012 and time 17:39:54 (UTC) in region 7 km W Norcia (PG)

A magnitude ML 1.1 earthquake occured in region: 7 km W Norcia (PG), on

  • 14-03-2012 17:39:54 (UTC)
  • 14-03-2012 18:39:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7990, 13.0100 at 21 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 7 4957 4957
Cerreto di Spoleto PG 8 1075 6032
Cascia PG 9 3217 9249
Preci PG 9 724 9973
Poggiodomo PG 11 117 10090
Sellano PG 12 1079 11169
Vallo di Nera PG 12 364 11533
Castelsantangelo sul Nera MC 16 281 11814
Sant'Anatolia di Narco PG 16 564 12378
Visso MC 16 1107 13485
Monteleone di Spoleto PG 17 599 14084
Scheggino PG 17 461 14545
Campello sul Clitunno PG 19 2442 16987
Ussita MC 19 444 17431

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km SE of Foligno (57155 inhabitants)
40 Km NE of Terni (111501 inhabitants)
59 Km W of Teramo (54892 inhabitants)
59 Km NW of L'Aquila (69753 inhabitants)
61 Km SE of Perugia (166134 inhabitants)
85 Km NE of Viterbo (67173 inhabitants)
92 Km N of Guidonia Montecelio (88673 inhabitants)
94 Km N of Tivoli (56533 inhabitants)
98 Km W of Montesilvano (53738 inhabitants)
100 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 1.1
2012-03-14
17:39:54
42.799 13.01 21 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1348809
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-03-14 17:39:54 ± 0.25
Latitude 42.7990 ± 0.0099
Longitude 13.0100 ± 0.0380
Depth (km) 21 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1348809

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3061
Semi-minor axis of confidence ellipse (meter) 932
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 74
Circular confidence region, given by single value of horizontal uncertainty (meter) 3289.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 152
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47124
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 1348809
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:54:48

Md:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1348809
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:54:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATCC.EHE. 2012-03-14T17:40:11.51 0.1 undecidable manual Sg 325 52.3032 -0.109 93
IV.SBPO.HHN. 2012-03-14T17:40:10.35 10.0 undecidable manual Pg 0 0 0
IV.FDMO.HHE. 2012-03-14T17:40:05.17 0.3 undecidable manual Sg 13 27.0507 -0.133 74
IV.ATCC.EHE. 2012-03-14T17:40:04.88 0.1 undecidable manual Pg 325 52.3032 0.324 89
IV.CESI.HHN. 2012-03-14T17:40:04.49 0.3 undecidable manual Sg 339 24.3534 -0.2 73
IV.LNSS.HHN. 2012-03-14T17:40:03.73 0.3 undecidable manual Sg 173 21.9669 -0.424 68
IV.NRCA.HHZ. 2012-03-14T17:40:02.10 0.3 undecidable manual Sg 66 9.2796 0.186 73
IV.LNSS.HHN. 2012-03-14T17:40:00.28 0.1 undecidable manual Pg 173 21.9669 0.037 100
IV.FDMO.HHE. 2012-03-14T17:40:00.50 0.1 undecidable manual Pg 13 27.0507 -0.408 92
IV.CESI.HHN. 2012-03-14T17:40:00.62 0.1 undecidable manual Pg 339 24.3534 0.069 98
IV.NRCA.HHZ. 2012-03-14T17:39:59.41 0.1 undecidable manual Pg 66 9.2796 0.458 93
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