Earthquake with magnitude of ML 1.5 on date 20-02-2008 and time 12:40:41 (Italy) in region 4 km W Trevi (PG)

A magnitude ML 1.5 earthquake occured in region: 4 km W Trevi (PG), on

  • 20-02-2008 11:40:41 (UTC)
  • 20-02-2008 12:40:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8720, 12.7020 at 2 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 4 8469 8469
Montefalco PG 5 5679 14148
Castel Ritaldi PG 6 3278 17426
Campello sul Clitunno PG 8 2442 19868
Foligno PG 9 57155 77023
Bevagna PG 10 5081 82104
Giano dell'Umbria PG 11 3846 85950
Gualdo Cattaneo PG 13 6155 92105
Spello PG 14 8645 100750
Spoleto PG 16 38218 138968
Cannara PG 17 4305 143273
Vallo di Nera PG 17 364 143637
Massa Martana PG 18 3770 147407
Sellano PG 19 1079 148486
Cerreto di Spoleto PG 19 1075 149561
Sant'Anatolia di Narco PG 19 564 150125

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km S of Foligno (57155 inhabitants)
35 Km N of Terni (111501 inhabitants)
37 Km SE of Perugia (166134 inhabitants)
70 Km NE of Viterbo (67173 inhabitants)
81 Km NW of L'Aquila (69753 inhabitants)
85 Km W of Teramo (54892 inhabitants)
94 Km SE of Arezzo (99543 inhabitants)
97 Km N of Guidonia Montecelio (88673 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 1.9
ML 1.5
2008-02-20
11:40:41
42.872 12.702 2 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 674949
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2008-02-20 11:40:41 ± 0.38
Latitude 42.8720 ± 0.0135
Longitude 12.7020 ± 0.0160
Depth (km) 2 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 674949

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2100
Semi-minor axis of confidence ellipse (meter) 789
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 218
Circular confidence region, given by single value of horizontal uncertainty (meter) 1984.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 245
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.41189
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 674949
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 12:48:04

Md:1.9

Field Value
Value 1.9
Uncertainty 0.0
Num. used stations
Type of magnitude Md
Reference to an origin 674949
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 12:48:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MURB.HHE. 2008-02-20T11:40:57.84 0.1 undecidable manual Sg 342 45.7209 0.217 94
IV.NRCA.SHZ. 2008-02-20T11:40:53.94 0.1 undecidable manual Sg 97 33.744 0.466 91
IV.MURB.HHE. 2008-02-20T11:40:50.59 0.1 undecidable manual Pg 342 45.7209 -0.323 92
IV.CESI.BHN. 2008-02-20T11:40:49.27 0.1 undecidable manual Sg 48 22.0668 -0.159 99
IV.ASS.SHZ. 2008-02-20T11:40:49.37 0.1 undecidable manual Sg 349 21.5673 0.109 100
IV.NRCA.SHZ. 2008-02-20T11:40:48.32 0.1 undecidable manual Pg 97 33.744 -0.198 96
IV.ASS.SHZ. 2008-02-20T11:40:46.32 0.1 undecidable manual Pg 349 21.5673 0.235 97
IV.CESI.BHN. 2008-02-20T11:40:45.84 0.1 undecidable manual Pg 48 22.0668 -0.342 95
IV.VVLD.BHE. 2008-02-20T11:40:36.27 10.0 undecidable manual Pg 0 0 0
IV.TRIV.HHE. 2008-02-20T11:40:27.87 10.0 undecidable manual Pg 0 0 0
IV.RNI2.HHN. 2008-02-20T11:40:25.04 10.0 undecidable manual Pg 0 0 0
IV.MIDA.HHZ. 2008-02-20T11:40:25.70 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