Earthquake with magnitude of ML 1.5 on date 09-02-2009 and time 08:21:52 (Italy) in region 2 km E Norcia (PG)

A magnitude ML 1.5 earthquake occured in region: 2 km E Norcia (PG), on

  • 09-02-2009 07:21:52 (UTC)
  • 09-02-2009 08:21:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7930, 13.1220 at 11 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 2 4957 4957
Castelsantangelo sul Nera MC 12 281 5238
Preci PG 12 724 5962
Cascia PG 12 3217 9179
Arquata del Tronto AP 15 1178 10357
Accumoli RI 15 667 11024
Visso MC 16 1107 12131
Ussita MC 17 444 12575
Cerreto di Spoleto PG 17 1075 13650
Poggiodomo PG 18 117 13767
Montegallo AP 18 523 14290
Sellano PG 19 1079 15369
Cittareale RI 20 482 15851

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
50 Km W of Teramo (54892 inhabitants)
54 Km NW of L'Aquila (69753 inhabitants)
69 Km SE of Perugia (166134 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
93 Km E of Viterbo (67173 inhabitants)
94 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km N of Tivoli (56533 inhabitants)
97 Km W of Pescara (121014 inhabitants)
97 Km SW of Ancona (100861 inhabitants)
99 Km NW of Chieti (51815 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 1.8
ML 1.5
2009-02-09
07:21:52
42.793 13.122 11 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 742829
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-02-09 07:21:52 ± 0.05
Latitude 42.7930 ± 0.0027
Longitude 13.1220 ± 0.0061
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 742829

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 523
Semi-minor axis of confidence ellipse (meter) 176
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 63
Circular confidence region, given by single value of horizontal uncertainty (meter) 583.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 126
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.04047
Epicentral distance of station farthest from the epicenter (degree) 0.39300
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 1.2
Num. used stations
Type of magnitude ML
Reference to an origin 742829
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:02:55

Md:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 742829
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:02:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
.TERO.HHE. 2009-02-09T07:22:06.31 0.1 undecidable manual Sg 116 43.623 -0.024 97
IV.CAMP.HHE. 2009-02-09T07:22:04.66 0.1 undecidable manual Sg 141 36.9297 0.107 96
IV.CESI.HHZ. 2009-02-09T07:22:02.51 0.1 undecidable manual Sg 323 29.3484 -0.011 100
IV.FDMO.HHZ. 2009-02-09T07:22:01.79 0.1 undecidable manual Sg 354 27.1506 -0.134 98
.TERO.HHE. 2009-02-09T07:22:00.25 0.1 undecidable manual Pg 116 43.623 -0.104 95
IV.LNSS.HHZ. 2009-02-09T07:22:00.42 0.1 undecidable manual Sg 197 22.1556 -0.18 97
IV.CAMP.HHE. 2009-02-09T07:21:59.31 0.1 negative manual Pg 141 36.9297 -0.016 98
IV.CESI.HHZ. 2009-02-09T07:21:58.27 0.1 negative manual Pg 323 29.3484 0.117 97
IV.LNSS.HHZ. 2009-02-09T07:21:57.16 0.1 positive manual Pg 197 22.1556 0.117 99
IV.FDMO.HHZ. 2009-02-09T07:21:57.91 0.1 negative manual Pg 354 27.1506 0.102 98
IV.NRCA.HHZ. 2009-02-09T07:21:56.07 0.1 undecidable manual Sg 352 4.4955 -0.2 100
IV.NRCA.HHZ. 2009-02-09T07:21:54.76 0.1 negative manual Pg 352 4.4955 0.216 100
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