Earthquake with magnitude of ML 1.0 on date 08-03-2009 and time 01:25:36 (UTC) in region 3 km N Poppi (AR)

A magnitude ML 1.0 earthquake occured in region: 3 km N Poppi (AR), on

  • 08-03-2009 01:25:36 (UTC)
  • 08-03-2009 02:25:36 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.7520, 11.7690 at 29 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
Poppi AR 3 6160 6160
Castel San Niccolò AR 5 2707 8867
Pratovecchio Stia AR 6 5845 14712
Bibbiena AR 8 12241 26953
Ortignano Raggiolo AR 8 878 27831
Montemignaio AR 12 566 28397
Castel Focognano AR 12 3149 31546
Chitignano AR 13 899 32445
Chiusi della Verna AR 15 2023 34468
Talla AR 17 1062 35530
Verghereto FC 20 1907 37437

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km N of Arezzo (99543 inhabitants)
41 Km E of Firenze (382808 inhabitants)
47 Km E of Scandicci (50609 inhabitants)
56 Km E of Prato (191150 inhabitants)
57 Km SW of Forlì (117913 inhabitants)
57 Km SW of Cesena (96758 inhabitants)
60 Km NE of Siena (53903 inhabitants)
60 Km S of Faenza (58541 inhabitants)
67 Km S of Imola (69797 inhabitants)
71 Km E of Pistoia (90315 inhabitants)
73 Km W of Rimini (147750 inhabitants)
82 Km SW of Ravenna (159116 inhabitants)
87 Km NW of Perugia (166134 inhabitants)
89 Km SE of Bologna (386663 inhabitants)
94 Km W of Pesaro (94582 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
2009-03-08
01:25:36
43.752 11.769 29 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 748919
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-03-08 01:25:36 ± 0.09
Latitude 43.7520 ± 0.0018
Longitude 11.7690 ± 0.0062
Depth (km) 29 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 748919

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 488
Semi-minor axis of confidence ellipse (meter) 235
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 71
Circular confidence region, given by single value of horizontal uncertainty (meter) 538.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 243
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.06
Epicentral distance of station closest to the epicenter (degree) 0.04676
Epicentral distance of station farthest from the epicenter (degree) 0.18796
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 748919
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:09:40

Md:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 748919
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:09:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CRE.HHN. 2009-03-08T01:25:47.34 0.3 undecidable manual Sg 135 20.868 -0.034 73
IV.SFI.EHE. 2009-03-08T01:25:46.95 0.3 undecidable manual Sg 20 18.0708 0.024 73
IV.ASQU.HHN. 2009-03-08T01:25:45.57 0.3 undecidable manual Sg 18 5.1948 0.01 75
IV.SFI.EHE. 2009-03-08T01:25:42.61 0.1 undecidable manual Pg 20 18.0708 -0.031 97
IV.CRE.HHN. 2009-03-08T01:25:42.96 0.3 undecidable manual Pg 135 20.868 0.06 72
IV.ASQU.HHN. 2009-03-08T01:25:41.84 0.1 undecidable manual Pg 18 5.1948 -0.013 100
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