Earthquake with magnitude of Md 1.9 on date 21-09-2010 and time 02:43:24 (UTC) in region 3 km NW Dovadola (FC)

A magnitude Md 1.9 earthquake occured in region: 3 km NW Dovadola (FC), on

  • 21-09-2010 02:43:24 (UTC)
  • 21-09-2010 04:43:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1460, 11.8780 at 36 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
Dovadola FC 3 1653 1653
Castrocaro Terme e Terra del Sole FC 7 6426 8079
Modigliana FC 7 4560 12639
Predappio FC 10 6346 18985
Rocca San Casciano FC 10 1910 20895
Brisighella RA 12 7639 28534
Tredozio FC 13 1212 29746
Meldola FC 15 9970 39716
Portico e San Benedetto FC 15 756 40472
Forlì FC 16 117913 158385
Faenza RA 16 58541 216926
Civitella di Romagna FC 16 3786 220712
Galeata FC 17 2516 223228
Riolo Terme RA 19 5720 228948

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km S of Faenza (58541 inhabitants)
16 Km SW of Forlì (117913 inhabitants)
27 Km SE of Imola (69797 inhabitants)
29 Km W of Cesena (96758 inhabitants)
40 Km SW of Ravenna (159116 inhabitants)
56 Km W of Rimini (147750 inhabitants)
58 Km SE of Bologna (386663 inhabitants)
65 Km NE of Firenze (382808 inhabitants)
69 Km E of Prato (191150 inhabitants)
70 Km NE of Scandicci (50609 inhabitants)
76 Km N of Arezzo (99543 inhabitants)
80 Km S of Ferrara (133155 inhabitants)
80 Km E of Pistoia (90315 inhabitants)
87 Km W of Pesaro (94582 inhabitants)
94 Km SE of Modena (184973 inhabitants)
97 Km W of Fano (60888 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 2010-09-21
02:43:24
44.146 11.878 36 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1117229
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2010-09-21 02:43:24 ± 0.64
Latitude 44.1460 ± 0.0288
Longitude 11.8780 ± 0.0551
Depth (km) 36 ± 6 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1117229

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3675
Semi-minor axis of confidence ellipse (meter) 3125
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 256
Circular confidence region, given by single value of horizontal uncertainty (meter) 5440.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 296
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.38401
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 3
Magnitude information

Md:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1117229
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 21:39:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MTRZ.HHN. 2010-09-21T02:43:40.44 0.6 undecidable manual Sg 297 40.5261 0.231 65
IV.SEI.SHZ. 2010-09-21T02:43:40.74 0.6 undecidable manual Sg 256 42.624 0.084 67
IV.FIR.HHZ. 2010-09-21T02:43:39.15 10.0 undecidable manual Pg 0 0 0
IV.VMG.SHZ. 2010-09-21T02:43:38.59 0.3 undecidable manual Sg 233 33.5442 -0.209 99
IV.VMG.SHZ. 2010-09-21T02:43:33.16 0.3 undecidable manual Pg 233 33.5442 0.374 96
IV.MTRZ.HHN. 2010-09-21T02:43:33.33 0.3 undecidable manual Pg 297 40.5261 -0.27 97
IV.SEI.SHZ. 2010-09-21T02:43:33.76 0.3 undecidable manual Pg 256 42.624 -0.098 100
IV.BRMO.HHN. 2010-09-21T02:43:04.34 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