Earthquake with magnitude of Md 2.1 on date 19-04-2001 and time 01:04:34 (Italy) in region 4 km NE Fiesole (FI)

A magnitude Md 2.1 earthquake occured in region: 4 km NE Fiesole (FI), on

  • 18-04-2001 23:04:34 (UTC)
  • 19-04-2001 01:04:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.8270, 11.3400 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
Fiesole FI 4 13969 13969
Bagno a Ripoli FI 8 25611 39580
Firenze FI 9 382808 422388
Pontassieve FI 10 20603 442991
Vaglia FI 10 5073 448064
Sesto Fiorentino FI 11 48958 497022
Rufina FI 12 7346 504368
Calenzano FI 14 17489 521857
Scandicci FI 15 50609 572466
Rignano sull'Arno FI 15 8651 581117
Borgo San Lorenzo FI 15 18211 599328
Pelago FI 15 7660 606988
Scarperia e San Piero FI 15 12217 619205
Vicchio FI 16 8044 627249
Campi Bisenzio FI 16 46166 673415
Dicomano FI 17 5515 678930
Impruneta FI 17 14615 693545
Londa FI 19 1840 695385
Lastra a Signa FI 20 20156 715541

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km NE of Firenze (382808 inhabitants)
15 Km NE of Scandicci (50609 inhabitants)
20 Km E of Prato (191150 inhabitants)
36 Km E of Pistoia (90315 inhabitants)
57 Km N of Siena (53903 inhabitants)
59 Km NW of Arezzo (99543 inhabitants)
66 Km SW of Imola (69797 inhabitants)
67 Km SW of Faenza (58541 inhabitants)
67 Km E of Lucca (89046 inhabitants)
71 Km SW of Forlì (117913 inhabitants)
74 Km S of Bologna (386663 inhabitants)
76 Km E of Pisa (89158 inhabitants)
80 Km W of Cesena (96758 inhabitants)
88 Km E of Viareggio (62467 inhabitants)
88 Km E of Livorno (159219 inhabitants)
95 Km SW of Ravenna (159116 inhabitants)
97 Km SE of Modena (184973 inhabitants)
99 Km E of Massa (69479 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 2001-04-18
23:04:34
43.827 11.34 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 415999
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2001-04-18 23:04:34 ± 0.181
Latitude 43.8270 ± 0.0135
Longitude 11.3400 ± 0.0129
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 415999

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) 1818.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 143
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.00316
Epicentral distance of station farthest from the epicenter (degree) 0.00534
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 415999
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 23:32:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.BDI.Z. 2001-04-18T23:04:55.10 10.0 undecidable manual SG 293 0.5772 -0.35 0.6
--.PII.Z. 2001-04-18T23:04:55.80 10.0 undecidable manual SG 260 0.5883 -0.83 0.2
--.CRE.Z. 2001-04-18T23:04:52.70 10.0 undecidable manual SG 114 0.4884 0.37 0.7
--.CSNT.Z. 2001-04-18T23:04:47.86 10.0 undecidable manual SG 185 0.3552 -0.27 0.8
--.SFI.Z. 2001-04-18T23:04:47.95 10.0 undecidable manual SG 77 0.3663 -0.74 0.3
--.PII.Z. 2001-04-18T23:04:47.25 10.0 undecidable manual PG 260 0.5883 0.27 1.8
--.BDI.Z. 2001-04-18T23:04:46.88 10.0 undecidable manual PG 293 0.5772 0.16 2
--.CRE.Z. 2001-04-18T23:04:44.22 10.0 undecidable manual PG 114 0.4884 -0.7 0.9
--.SFI.Z. 2001-04-18T23:04:43.40 10.0 undecidable manual PG 77 0.3663 0.59 1.1
--.CSNT.Z. 2001-04-18T23:04:42.90 10.0 undecidable manual PG 185 0.3552 0.41 1.6
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