Earthquake with magnitude of ML 1.9 on date 18-02-2009 and time 11:14:35 (Italy) in region Costa Ravennate (Ravenna)

A magnitude ML 1.9 earthquake occured in region: Costa Ravennate (Ravenna), on

  • 18-02-2009 10:14:35 (UTC)
  • 18-02-2009 11:14:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.3020, 12.4460 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
Cervia RA 9 28940 28940
Cesenatico FC 12 25796 54736
Bellaria-Igea Marina RN 17 19519 74255

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km SE of Ravenna (159116 inhabitants)
24 Km NE of Cesena (96758 inhabitants)
28 Km NW of Rimini (147750 inhabitants)
33 Km E of Forlì (117913 inhabitants)
45 Km E of Faenza (58541 inhabitants)
57 Km NW of Pesaro (94582 inhabitants)
58 Km E of Imola (69797 inhabitants)
69 Km NW of Fano (60888 inhabitants)
88 Km SE of Ferrara (133155 inhabitants)
90 Km E of Bologna (386663 inhabitants)
100 Km SE of Rovigo (51867 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 1.9
2009-02-18
10:14:35
44.302 12.446 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 745169
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-02-18 10:14:35 ± 0.33
Latitude 44.3020 ± 0.0162
Longitude 12.4460 ± 0.0138
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 745169

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1895
Semi-minor axis of confidence ellipse (meter) 895
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 19
Circular confidence region, given by single value of horizontal uncertainty (meter) 2109.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 292
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) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.58546
Epicentral distance of station farthest from the epicenter (degree) 0.76892
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:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 745169
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:05:30

Md:2.1

Field Value
Value 2.1
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 745169
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:05:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHE. 2009-02-18T10:15:00.64 0.6 undecidable manual Sg 175 85.3479 -0.055 49
IV.FSSB.HHN. 2009-02-18T10:14:57.14 0.6 undecidable manual Sg 159 72.5718 -0.143 50
IV.SFI.EHE. 2009-02-18T10:14:55.48 0.6 undecidable manual Sg 227 64.9905 0.215 50
IV.PIEI.HHE. 2009-02-18T10:14:49.92 0.3 undecidable manual Pg 175 85.3479 -0.007 75
IV.FSSB.HHN. 2009-02-18T10:14:48.18 0.3 undecidable manual Pg 159 72.5718 0.222 73
IV.SFI.EHE. 2009-02-18T10:14:46.62 0.1 undecidable manual Pg 227 64.9905 -0.172 100
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