Earthquake with magnitude of ML 0.7 on date 09-05-2022 and time 05:49:01 (Italy) in region 4 km SW Impruneta (FI)

A magnitude ML 0.7 earthquake occured in region: 4 km SW Impruneta (FI), on

  • 09-05-2022 03:49:01 (UTC)
  • 09-05-2022 05:49:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6550, 11.2390 at 8 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Impruneta FI 4 14615 14615
San Casciano in Val di Pesa FI 4 17062 31677
Greve in Chianti FI 10 13862 45539
Tavarnelle Val di Pesa FI 12 7800 53339
Scandicci FI 12 50609 103948
Bagno a Ripoli FI 13 25611 129559
Firenze FI 13 382808 512367
Montespertoli FI 13 13537 525904
Barberino Val d'Elsa FI 14 4386 530290
Lastra a Signa FI 17 20156 550446
Figline e Incisa Valdarno FI 17 23505 573951
Fiesole FI 18 13969 587920
Signa FI 18 19179 607099
Rignano sull'Arno FI 19 8651 615750
Montelupo Fiorentino FI 19 14098 629848
Certaldo FI 20 16121 645969
Sesto Fiorentino FI 20 48958 694927

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km SE of Scandicci (50609 inhabitants)
13 Km S of Firenze (382808 inhabitants)
28 Km SE of Prato (191150 inhabitants)
38 Km N of Siena (53903 inhabitants)
40 Km SE of Pistoia (90315 inhabitants)
56 Km W of Arezzo (99543 inhabitants)
63 Km E of Lucca (89046 inhabitants)
68 Km E of Pisa (89158 inhabitants)
76 Km E of Livorno (159219 inhabitants)
83 Km E of Viareggio (62467 inhabitants)
87 Km SW of Imola (69797 inhabitants)
87 Km SW of Faenza (58541 inhabitants)
90 Km SW of Forlì (117913 inhabitants)
94 Km S of Bologna (386663 inhabitants)
97 Km SW of Cesena (96758 inhabitants)
98 Km E of Massa (69479 inhabitants)
100 Km N of Grosseto (82087 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
Reviewed
Rev100
ML 0.7 2022-05-09
03:49:01
43.6552 11.2392 8 2022-05-09
03:56:27
Sala Sismica INGV-Roma 104375711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-05-09 03:49:01 ± 0.07
Latitude 43.6552 ± 0.0027
Longitude 11.2392 ± 0.0050
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 104375711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 365
Semi-minor axis of confidence ellipse (meter) 139
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) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 122
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.13130
Epicentral distance of station farthest from the epicenter (degree) 0.52071
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 104375711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-05-09 03:56:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MPPT.EHZ. 2022-05-09T03:49:13.65 0.6 undecidable manual S 340 35.6421 102 -0.01 50
IV.PII.HHZ. 2022-05-09T03:49:11.73 0.1 undecidable manual P 278 57.7977 50 -0.07 95
IV.RUFI.EHZ. 2022-05-09T03:49:11.45 0.6 undecidable manual S 47 29.6481 104 -0.21 48
IV.CRMI.HNZ. 2022-05-09T03:49:10.34 0.3 undecidable manual S 307 25.9518 106 -0.09 75
IV.MPPT.EHZ. 2022-05-09T03:49:08.12 1.0 negative manual P 340 35.6421 102 -0.21 24
IV.CSNT.HHZ. 2022-05-09T03:49:08.47 0.6 undecidable manual S 169 20.5683 110 -0.18 50
IV.RUFI.EHZ. 2022-05-09T03:49:07.31 0.3 positive manual P 47 29.6481 104 0.14 74
IV.BOSL.HHE. 2022-05-09T03:49:07.75 0.1 undecidable manual P 19 32.4453 103 0.04 100
IV.OSSC.HHZ. 2022-05-09T03:49:06.62 0.6 undecidable manual S 178 14.5743 117 -0.12 51
IV.CRMI.HNZ. 2022-05-09T03:49:06.59 0.1 undecidable manual P 307 25.9518 106 0.13 99
IV.CSNT.HHZ. 2022-05-09T03:49:05.50 1.0 undecidable manual P 169 20.5683 110 0.07 25
IV.OSSC.HHZ. 2022-05-09T03:49:04.67 0.6 negative manual P 178 14.5743 117 0.34 48
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.OSSC.HHN. ML:0.8 0.00007345 0.14 AML other m 2022-05-09T03:49:08.16
IV.CSNT.HHN. ML:0.7 0.000041925615 0.1792 AML other m 2022-05-09T03:49:09.63
IV.CSNT.HHE. ML:0.3 0.00001567118 0.2624 AML other m 2022-05-09T03:49:08.81
IV.MPPT.EHE. ML:0.6 0.0000173 0.6 AML other m 2022-05-09T03:49:13.91
IV.OSSC.HHE. ML:0.9 0.00008560931 0.16 AML other m 2022-05-09T03:49:07.43
IV.MPPT.EHN. ML:0.1 0.0000071971795 0.5216 AML other m 2022-05-09T03:49:13.68
IV.RUFI.EHE. ML:0.7 0.000023402714999999996 0.24 AML other m 2022-05-09T03:49:12.33
IV.RUFI.EHN. ML:0.7 0.000023268121500000004 0.2976 AML other m 2022-05-09T03:49:11.00
IV.PII.HHE. ML:1.1 0.000023975585 0.3008 AML other m 2022-05-09T03:49:21.19
IV.PII.HHN. ML:1.1 0.00002432434 0.32 AML other m 2022-05-09T03:49:21.15
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