Earthquake with magnitude of ML 1.0 on date 06-02-2009 and time 22:27:55 (Italy) in region 3 km SW Cerreto di Spoleto (PG)

A magnitude ML 1.0 earthquake occured in region: 3 km SW Cerreto di Spoleto (PG), on

  • 06-02-2009 21:27:55 (UTC)
  • 06-02-2009 22:27:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7980, 12.9000 at 10 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
Cerreto di Spoleto PG 3 1075 1075
Vallo di Nera PG 4 364 1439
Sant'Anatolia di Narco PG 9 564 2003
Poggiodomo PG 10 117 2120
Campello sul Clitunno PG 10 2442 4562
Sellano PG 11 1079 5641
Scheggino PG 11 461 6102
Cascia PG 13 3217 9319
Preci PG 15 724 10043
Spoleto PG 15 38218 48261
Trevi PG 15 8469 56730
Norcia PG 16 4957 61687
Monteleone di Spoleto PG 17 599 62286
Castel Ritaldi PG 19 3278 65564

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km SE of Foligno (57155 inhabitants)
33 Km NE of Terni (111501 inhabitants)
54 Km SE of Perugia (166134 inhabitants)
64 Km NW of L'Aquila (69753 inhabitants)
68 Km W of Teramo (54892 inhabitants)
78 Km NE of Viterbo (67173 inhabitants)
90 Km N of Guidonia Montecelio (88673 inhabitants)
93 Km N 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 1.4
ML 1.0
2009-02-06
21:27:55
42.798 12.9 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 742579
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-02-06 21:27:55 ± 0.12
Latitude 42.7980 ± 0.0036
Longitude 12.9000 ± 0.0098
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 742579

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 842
Semi-minor axis of confidence ellipse (meter) 368
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 256
Circular confidence region, given by single value of horizontal uncertainty (meter) 894.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 209
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 6
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.22033
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 742579
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:02:38

Md:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 742579
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:02:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FNVD.HHE. 2009-02-06T21:28:21.79 10.0 undecidable manual Pg 0 0 0
IV.CESI.HHE. 2009-02-06T21:28:04.47 0.1 undecidable manual Sg 1 22.9548 -0.123 99
IV.LNSS.HHZ. 2009-02-06T21:28:04.90 0.3 undecidable manual Sg 152 24.4533 -0.171 73
IV.NRCA.HHZ. 2009-02-06T21:28:02.92 0.3 undecidable manual Sg 77 17.871 -0.087 75
IV.LNSS.HHZ. 2009-02-06T21:28:01.26 0.1 undecidable manual Pg 152 24.4533 0.064 100
IV.CESI.HHE. 2009-02-06T21:28:00.98 0.1 positive manual Pg 1 22.9548 0.059 100
IV.NRCA.HHZ. 2009-02-06T21:28:00.21 0.1 undecidable manual Pg 77 17.871 0.207 98
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