Earthquake with magnitude of ML 1.7 on date 16-02-2009 and time 04:18:35 (UTC) in region Costa Romagnola meridionale (Rimini, Forli Cesena)

A magnitude ML 1.7 earthquake occured in region: Costa Romagnola meridionale (Rimini, Forli Cesena), on

  • 16-02-2009 04:18:35 (UTC)
  • 16-02-2009 05:18:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.0970, 12.8080 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
Gabicce Mare PU 15 5781 5781
Cattolica RN 16 17125 22906
Riccione RN 16 34965 57871
Misano Adriatico RN 16 13014 70885
Gradara PU 18 4835 75720
San Giovanni in Marignano RN 19 9417 85137
Rimini RN 20 147750 232887

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km E of Rimini (147750 inhabitants)
22 Km NW of Pesaro (94582 inhabitants)
33 Km NW of Fano (60888 inhabitants)
45 Km E of Cesena (96758 inhabitants)
60 Km SE of Ravenna (159116 inhabitants)
63 Km E of Forlì (117913 inhabitants)
77 Km E of Faenza (58541 inhabitants)
78 Km NW of Ancona (100861 inhabitants)
92 Km E of Imola (69797 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 1.7
2009-02-16
04:18:35
44.097 12.808 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 744419
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-02-16 04:18:35 ± 0.37
Latitude 44.0970 ± 0.0162
Longitude 12.8080 ± 0.0313
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 744419

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2526
Semi-minor axis of confidence ellipse (meter) 1684
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 258
Circular confidence region, given by single value of horizontal uncertainty (meter) 3080.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 333
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.59445
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.5
Num. used stations
Type of magnitude ML
Reference to an origin 744419
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:04:40

Md:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 744419
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:04:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHE. 2009-02-16T04:18:55.71 0.6 undecidable manual Sg 199 65.9895 0.261 46
IV.FSSB.HHN. 2009-02-16T04:18:49.67 0.3 undecidable manual Sg 183 44.9217 -0.14 73
IV.PIEI.HHE. 2009-02-16T04:18:46.79 0.1 undecidable manual Pg 199 65.9895 -0.068 95
IV.FSSB.HHN. 2009-02-16T04:18:43.44 0.1 undecidable manual Pg 183 44.9217 -0.162 97
IV.PESA.HHZ. 2009-02-16T04:18:42.05 0.6 undecidable manual Sg 172 17.4714 -0.068 52
IV.PESA.HHZ. 2009-02-16T04:18:39.40 0.1 undecidable manual Pg 172 17.4714 0.239 100
IV.CDCA.EHE. 2009-02-16T04:18:18.00 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