Earthquake with magnitude of Md 2.5 on date 09-12-1991 and time 11:21:51 (UTC) in region 4 km W Carpineti (RE)

A magnitude Md 2.5 earthquake occured in region: 4 km W Carpineti (RE), on

  • 09-12-1991 11:21:51 (UTC)
  • 09-12-1991 12:21:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.4650, 10.4740 at 5 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
Carpineti RE 4 4064 4064
Casina RE 6 4504 8568
Castelnovo ne' Monti RE 6 10465 19033
Baiso RE 11 3315 22348
Vetto RE 11 1860 24208
Villa Minozzo RE 11 3750 27958
Toano RE 12 4463 32421
Viano RE 15 3374 35795
Canossa RE 15 3844 39639
Ventasso RE 16 4295 43934
Vezzano sul Crostolo RE 16 4259 48193
Montefiorino MO 17 2203 50396
Prignano sulla Secchia MO 18 3747 54143
Neviano degli Arduini PR 18 3649 57792
San Polo d'Enza RE 19 6083 63875
Quattro Castella RE 19 13195 77070

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km SW of Reggio nell'Emilia (171345 inhabitants)
39 Km SE of Parma (192836 inhabitants)
41 Km W of Modena (184973 inhabitants)
48 Km SW of Carpi (70699 inhabitants)
52 Km NE of Carrara (63133 inhabitants)
54 Km NE of Massa (69479 inhabitants)
65 Km NE of La Spezia (93959 inhabitants)
69 Km N of Viareggio (62467 inhabitants)
69 Km NW of Pistoia (90315 inhabitants)
69 Km N of Lucca (89046 inhabitants)
69 Km W of Bologna (386663 inhabitants)
82 Km NW of Prato (191150 inhabitants)
82 Km SE of Cremona (71901 inhabitants)
83 Km N of Pisa (89158 inhabitants)
90 Km SE of Piacenza (102191 inhabitants)
97 Km NW of Scandicci (50609 inhabitants)
99 Km NW of Firenze (382808 inhabitants)
99 Km W of Imola (69797 inhabitants)
100 Km W of Ferrara (133155 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 2.5
ML-VAX 2.1
1991-12-09
11:21:51
44.465 10.474 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 154819
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-12-09 11:21:51 ± 0.299
Latitude 44.4650 ± 0.0160
Longitude 10.4740 ± 0.0456
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 154819

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) 4036.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 125
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.8
Epicentral distance of station closest to the epicenter (degree) 0.00283
Epicentral distance of station farthest from the epicenter (degree) 0.01603
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 154819
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:24:34

ML:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 154819
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
--.CTI.Z. 1991-12-09T11:22:47.20 10.0 undecidable manual SN 27 1.776 1.05 0.3
--.MDI.Z. 1991-12-09T11:22:37.93 10.0 undecidable manual SN 338 1.4097 0.7 0.6
--.SAL.Z. 1991-12-09T11:22:30.00 10.0 undecidable manual SN 1 1.1433 -0.68 0.7
--.SFI.Z. 1991-12-09T11:22:30.70 10.0 undecidable manual SN 119 1.1211 0.25 0.8
--.CTI.Z. 1991-12-09T11:22:23.59 10.0 undecidable manual PN 27 1.776 0.57 1.3
--.MDI.Z. 1991-12-09T11:22:16.58 10.0 undecidable manual PN 338 1.4097 -1.39 0.6
--.SFI.Z. 1991-12-09T11:22:14.15 10.0 undecidable manual PN 119 1.1211 0.09 2.1
--.SAL.Z. 1991-12-09T11:22:13.00 10.0 undecidable manual PN 1 1.1433 -1.2 1
--.BOB.Z. 1991-12-09T11:22:09.56 10.0 undecidable manual PG 292 0.777 1.58 0.7
--.BDI.Z. 1991-12-09T11:22:07.58 10.0 undecidable manual SG 167 0.3996 -0.04 0.9
--.MME.Z. 1991-12-09T11:22:04.15 10.0 undecidable manual SG 149 0.3108 0.21 0.8
--.MME.Z. 1991-12-09T11:21:59.14 10.0 undecidable manual PG 149 0.3108 0.38 2
--.BDI.Z. 1991-12-09T11:21:59.65 10.0 undecidable manual PG 167 0.3996 -1.23 1.1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download