Earthquake with magnitude of Md 2.1 on date 18-08-2003 and time 19:11:53 (Italy) in region 2 km N Polinago (MO)

A magnitude Md 2.1 earthquake occured in region: 2 km N Polinago (MO), on

  • 18-08-2003 17:11:53 (UTC)
  • 18-08-2003 19:11:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.3630, 10.7280 at 26 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
Polinago MO 2 1672 1672
Lama Mocogno MO 6 2734 4406
Palagano MO 8 2194 6600
Montefiorino MO 8 2203 8803
Serramazzoni MO 8 8282 17085
Prignano sulla Secchia MO 9 3747 20832
Pavullo nel Frignano MO 9 17383 38215
Montecreto MO 13 940 39155
Toano RE 14 4463 43618
Frassinoro MO 14 1926 45544
Sestola MO 15 2508 48052
Riolunato MO 16 712 48764
Castellarano RE 16 15232 63996
Fanano MO 18 2989 66985
Baiso RE 18 3315 70300
Pievepelago MO 19 2222 72522
Carpineti RE 19 4064 76586
Guiglia MO 20 3931 80517
Montese MO 20 3353 83870

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km SW of Modena (184973 inhabitants)
38 Km S of Reggio nell'Emilia (171345 inhabitants)
48 Km S of Carpi (70699 inhabitants)
50 Km NW of Pistoia (90315 inhabitants)
51 Km W of Bologna (386663 inhabitants)
58 Km SE of Parma (192836 inhabitants)
59 Km NE of Massa (69479 inhabitants)
59 Km NE of Carrara (63133 inhabitants)
60 Km NE of Lucca (89046 inhabitants)
61 Km NW of Prato (191150 inhabitants)
67 Km NE of Viareggio (62467 inhabitants)
76 Km NW of Scandicci (50609 inhabitants)
77 Km NE of Pisa (89158 inhabitants)
77 Km E of La Spezia (93959 inhabitants)
78 Km NW of Firenze (382808 inhabitants)
79 Km W of Imola (69797 inhabitants)
88 Km SW of Ferrara (133155 inhabitants)
92 Km W of Faenza (58541 inhabitants)
96 Km NE of Livorno (159219 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-VAX 1.8
2003-08-18
17:11:53
44.363 10.728 26 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 482849
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2003-08-18 17:11:53 ± 0.537
Latitude 44.3630 ± 0.0190
Longitude 10.7280 ± 0.0155
Depth (km) 26 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 482849

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 2447.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 169
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00089
Epicentral distance of station farthest from the epicenter (degree) 0.00275
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 482849
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 00:40:14

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 482849
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.BDI.Z. 2003-08-18T17:12:07.50 10.0 undecidable manual SG 197 0.3108 0.39 0.2
--.ERBM.Z. 2003-08-18T17:12:05.17 10.0 undecidable manual SG 284 0.222 0.64 0
--.ZCCA.Z. 2003-08-18T17:12:03.64 10.0 undecidable manual SG 93 0.1665 0.32 0.4
--.GSCL.Z. 2003-08-18T17:12:01.47 10.0 undecidable manual SG 262 0.0999 -0.48 0.2
--.BDI.Z. 2003-08-18T17:12:00.83 10.0 undecidable manual PG 197 0.3108 -0.17 1.2
--.ZCCA.Z. 2003-08-18T17:11:59.10 10.0 negative manual PG 93 0.1665 -0.05 3.5
--.ERBM.Z. 2003-08-18T17:11:59.78 10.0 undecidable manual PG 284 0.222 0.01 1.7
--.GSCL.Z. 2003-08-18T17:11:57.96 10.0 undecidable manual PG 262 0.0999 -0.32 0.9
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