Earthquake with magnitude of ML 1.2 on date 27-03-2009 and time 21:36:48 (Italy) in region 3 km N Trevi (PG)

A magnitude ML 1.2 earthquake occured in region: 3 km N Trevi (PG), on

  • 27-03-2009 20:36:48 (UTC)
  • 27-03-2009 21:36:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9080, 12.7410 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 3 8469 8469
Foligno PG 6 57155 65624
Montefalco PG 7 5679 71303
Campello sul Clitunno PG 10 2442 73745
Castel Ritaldi PG 11 3278 77023
Spello PG 11 8645 85668
Bevagna PG 11 5081 90749
Gualdo Cattaneo PG 15 6155 96904
Sellano PG 15 1079 97983
Giano dell'Umbria PG 16 3846 101829
Cannara PG 16 4305 106134
Valtopina PG 17 1398 107532
Cerreto di Spoleto PG 17 1075 108607
Vallo di Nera PG 18 364 108971
Spoleto PG 19 38218 147189

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km SE of Foligno (57155 inhabitants)
36 Km SE of Perugia (166134 inhabitants)
39 Km N of Terni (111501 inhabitants)
75 Km NE of Viterbo (67173 inhabitants)
82 Km NW of L'Aquila (69753 inhabitants)
83 Km W of Teramo (54892 inhabitants)
93 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 1.8
ML 1.2
2009-03-27
20:36:48
42.908 12.741 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 752479
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-03-27 20:36:48 ± 0.12
Latitude 42.9080 ± 0.0054
Longitude 12.7410 ± 0.0061
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 752479

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 662
Semi-minor axis of confidence ellipse (meter) 380
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 27
Circular confidence region, given by single value of horizontal uncertainty (meter) 781.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 231
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 10
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.37592
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 752479
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:13:40

Md:1.8

Field Value
Value 1.8
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 752479
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:13:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ZCCA.HHE. 2009-03-27T20:37:13.71 10.0 undecidable manual Pg 0 0 0
IV.SNTG.SHZ. 2009-03-27T20:37:02.52 0.3 undecidable manual Sg 23 41.7249 0.195 70
IV.NRCA.SHZ. 2009-03-27T20:36:59.77 0.6 undecidable manual Sg 105 31.4463 0.177 48
IV.FDMO.HHE. 2009-03-27T20:36:59.55 0.1 undecidable manual Sg 63 31.5462 -0.057 98
IV.SNTG.SHZ. 2009-03-27T20:36:56.28 0.1 undecidable manual Pg 23 41.7249 -0.17 94
IV.CESI.HHZ. 2009-03-27T20:36:55.16 0.1 undecidable manual Sg 51 17.0718 -0.067 100
IV.FDMO.HHE. 2009-03-27T20:36:54.87 0.1 undecidable manual Pg 63 31.5462 -0.011 99
IV.NRCA.SHZ. 2009-03-27T20:36:54.78 0.1 undecidable manual Pg 105 31.4463 -0.093 97
IV.ASSB.HHZ. 2009-03-27T20:36:54.93 0.1 undecidable manual Sg 336 16.2726 -0.067 100
IV.ASSB.HHZ. 2009-03-27T20:36:52.33 0.1 undecidable manual Pg 336 16.2726 0.11 99
IV.CESI.HHZ. 2009-03-27T20:36:52.50 0.1 undecidable manual Pg 51 17.0718 0.151 98
IV.SBPO.HHZ. 2009-03-27T20:36:38.34 10.0 undecidable manual Pg 0 0 0
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