Earthquake with magnitude of ML 1.0 on date 17-02-2009 and time 00:41:28 (Italy) in region 10 km NE Trevi (PG)

A magnitude ML 1.0 earthquake occured in region: 10 km NE Trevi (PG), on

  • 16-02-2009 23:41:28 (UTC)
  • 17-02-2009 00:41:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9460, 12.8290 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
Trevi PG 10 8469 8469
Foligno PG 10 57155 65624
Sellano PG 10 1079 66703
Spello PG 14 8645 75348
Valtopina PG 14 1398 76746
Campello sul Clitunno PG 15 2442 79188
Monte Cavallo MC 15 145 79333
Montefalco PG 15 5679 85012
Cerreto di Spoleto PG 16 1075 86087
Serravalle di Chienti MC 17 1070 87157
Bevagna PG 18 5081 92238
Castel Ritaldi PG 19 3278 95516
Preci PG 19 724 96240
Nocera Umbra PG 19 5839 102079
Vallo di Nera PG 20 364 102443

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km E of Foligno (57155 inhabitants)
40 Km E of Perugia (166134 inhabitants)
45 Km NE of Terni (111501 inhabitants)
78 Km W of Teramo (54892 inhabitants)
81 Km NW of L'Aquila (69753 inhabitants)
83 Km NE of Viterbo (67173 inhabitants)
93 Km SW of Ancona (100861 inhabitants)
96 Km SE of Arezzo (99543 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 1.0
2009-02-16
23:41:28
42.946 12.829 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 744759
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-02-16 23:41:28 ± 0.12
Latitude 42.9460 ± 0.0117
Longitude 12.8290 ± 0.0086
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 744759

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1404
Semi-minor axis of confidence ellipse (meter) 501
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 337
Circular confidence region, given by single value of horizontal uncertainty (meter) 1476.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 247
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.08094
Epicentral distance of station farthest from the epicenter (degree) 0.37592
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:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 744759
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:05:03

Md:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 744759
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:05:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LNSS.HHN. 2009-02-16T23:41:42.54 0.3 undecidable manual Sg 156 41.7249 0.044 72
IV.NRCA.SHZ. 2009-02-16T23:41:38.47 0.6 undecidable manual Sg 118 26.3514 0.09 49
IV.FDMO.HHE. 2009-02-16T23:41:37.49 0.3 undecidable manual Sg 64 23.2545 -0.022 75
IV.LNSS.HHN. 2009-02-16T23:41:36.61 0.1 undecidable manual Pg 156 41.7249 -0.053 96
IV.NRCA.SHZ. 2009-02-16T23:41:34.20 0.3 undecidable manual Pg 118 26.3514 -0.083 74
IV.FDMO.HHE. 2009-02-16T23:41:33.81 0.1 undecidable manual Pg 64 23.2545 0.025 100
IV.CESI.HHZ. 2009-02-16T23:41:33.36 0.3 undecidable manual Sg 43 8.9799 -0.057 76
IV.CESI.HHZ. 2009-02-16T23:41:31.55 0.3 undecidable manual Pg 43 8.9799 0.126 75
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