Earthquake with magnitude of ML 2.1 on date 25-02-2009 and time 09:16:11 (Italy) in region 2 km W Frontone (PU)

A magnitude ML 2.1 earthquake occured in region: 2 km W Frontone (PU), on

  • 25-02-2009 08:16:11 (UTC)
  • 25-02-2009 09:16:11 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.5190, 12.7200 at 39 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
Frontone PU 2 1300 1300
Serra Sant'Abbondio PU 5 1027 2327
Cagli PU 7 8731 11058
Cantiano PU 9 2245 13303
Pergola PU 11 6333 19636
Acqualagna PU 12 4393 24029
Scheggia e Pascelupo PG 13 1393 25422
Sassoferrato AN 15 7285 32707
Costacciaro PG 18 1216 33923
Arcevia AN 18 4612 38535
Piobbico PU 19 2029 40564
Fermignano PU 19 8596 49160
Fratte Rosa PU 19 966 50126

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km SW of Fano (60888 inhabitants)
46 Km SW of Pesaro (94582 inhabitants)
53 Km NE of Perugia (166134 inhabitants)
62 Km S of Rimini (147750 inhabitants)
63 Km N of Foligno (57155 inhabitants)
65 Km W of Ancona (100861 inhabitants)
68 Km E of Arezzo (99543 inhabitants)
79 Km SE of Cesena (96758 inhabitants)
95 Km SE of Forlì (117913 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 2.1
ML 2.1
2009-02-25
08:16:11
43.519 12.72 39 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 746479
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-02-25 08:16:11 ± 0.21
Latitude 43.5190 ± 0.0144
Longitude 12.7200 ± 0.0161
Depth (km) 39 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 746479

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1163
Semi-minor axis of confidence ellipse (meter) 1135
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 25
Circular confidence region, given by single value of horizontal uncertainty (meter) 2061.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.59
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.75003
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 746479
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:06:58

Md:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 746479
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:06:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHE. 2009-02-25T08:16:33.13 0.6 undecidable manual Sg 151 61.1943 0.768 40
IV.ASSB.HHN. 2009-02-25T08:16:31.47 0.3 undecidable manual Sg 185 53.1024 0.855 58
IV.SBPO.HHZ. 2009-02-25T08:16:31.04 10.0 undecidable manual Pg 0 0 0
IV.PARC.HHN. 2009-02-25T08:16:28.56 0.6 undecidable manual Sg 291 41.2254 0.426 46
IV.BADI.EHN. 2009-02-25T08:16:28.60 0.6 undecidable manual Sg 269 38.2284 1.059 35
IV.SFI.EHE. 2009-02-25T08:16:27.13 0.3 undecidable manual Pg 302 82.0512 0.814 55
IV.NRCA.SHZ. 2009-02-25T08:16:26.72 0.6 undecidable manual Pg 157 82.4508 0.351 43
IV.MGAB.HHE. 2009-02-25T08:16:26.08 0.1 undecidable manual Pg 216 83.25 -0.392 86
IV.FSSB.HHE. 2009-02-25T08:16:25.13 0.3 undecidable manual Sg 13 19.869 0.649 66
IV.ARVD.HHE. 2009-02-25T08:16:24.60 0.3 undecidable manual Sg 97 17.9709 0.349 73
IV.CAFI.HHN. 2009-02-25T08:16:23.56 0.3 undecidable manual Pg 251 64.2912 -0.544 64
IV.CESI.HHE. 2009-02-25T08:16:23.18 0.6 undecidable manual Pg 165 58.8966 -0.266 46
IV.PIEI.HHZ. 2009-02-25T08:16:23.53 0.3 undecidable manual Sg 277 14.9739 -0.387 73
IV.FDMO.HHE. 2009-02-25T08:16:23.31 0.1 undecidable manual Pg 151 61.1943 -0.415 89
IV.ASSB.HHN. 2009-02-25T08:16:22.80 0.3 undecidable manual Pg 185 53.1024 0.084 73
IV.PESA.HHE. 2009-02-25T08:16:22.40 0.3 undecidable manual Pg 12 47.8188 0.331 69
IV.BADI.EHN. 2009-02-25T08:16:21.01 0.1 undecidable manual Pg 269 38.2284 0.069 99
IV.MURB.HHE. 2009-02-25T08:16:20.70 0.6 undecidable manual Pg 209 32.4453 0.387 47
IV.PARC.HHN. 2009-02-25T08:16:20.79 0.3 undecidable manual Pg 291 41.2254 -0.495 68
IV.SNTG.SHZ. 2009-02-25T08:16:19.99 0.3 undecidable manual Pg 149 34.2435 -0.512 68
IV.ARVD.HHE. 2009-02-25T08:16:18.82 0.1 undecidable manual Pg 97 17.9709 -0.222 100
IV.FSSB.HHE. 2009-02-25T08:16:18.95 0.1 positive manual Pg 13 19.869 -0.226 100
IV.PIEI.HHZ. 2009-02-25T08:16:18.15 0.1 undecidable manual Pg 277 14.9739 -0.698 88
IV.FIU.EHZ. 2009-02-25T08:16:01.20 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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