Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 26-03-2022 and time 19:02:54 (UTC) in region 5 km N Palazzuolo sul Senio (FI)

A magnitude ML 0.7 earthquake occured in region: 5 km N Palazzuolo sul Senio (FI), on

  • 26-03-2022 19:02:54 (UTC)
  • 26-03-2022 20:02:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.1560, 11.5380 at 6 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Palazzuolo sul Senio FI 5 1154 1154
Castel del Rio BO 7 1246 2400
Casola Valsenio RA 10 2617 5017
Marradi FI 11 3139 8156
Fontanelice BO 12 1943 10099
Firenzuola FI 13 4726 14825
Borgo Tossignano BO 14 3288 18113
Casalfiumanese BO 17 3438 21551
Tredozio FC 19 1212 22763
Monghidoro BO 19 3749 26512
Brisighella RA 20 7639 34151

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km SW of Imola (69797 inhabitants)
31 Km W of Faenza (58541 inhabitants)
41 Km SE of Bologna (386663 inhabitants)
41 Km W of Forlì (117913 inhabitants)
47 Km NE of Prato (191150 inhabitants)
48 Km NE of Firenze (382808 inhabitants)
53 Km NE of Scandicci (50609 inhabitants)
55 Km E of Pistoia (90315 inhabitants)
56 Km W of Cesena (96758 inhabitants)
60 Km W of Ravenna (159116 inhabitants)
73 Km SE of Modena (184973 inhabitants)
76 Km S of Ferrara (133155 inhabitants)
81 Km NW of Arezzo (99543 inhabitants)
83 Km W of Rimini (147750 inhabitants)
87 Km SE of Carpi (70699 inhabitants)
90 Km E of Lucca (89046 inhabitants)
94 Km SE of Reggio nell'Emilia (171345 inhabitants)
95 Km N of Siena (53903 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 2022-03-26
19:02:54		 44.1557 11.5378 6 2022-03-26
19:10:16		 Sala Sismica INGV-Roma 102415371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-03-26 19:02:54 ± 0.22
Latitude 44.1557 ± 0.0054
Longitude 11.5378 ± 0.0050
Depth (km) 6 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 102415371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 590
Semi-minor axis of confidence ellipse (meter) 141
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 185
Circular confidence region, given by single value of horizontal uncertainty (meter) 590.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.08094
Epicentral distance of station farthest from the epicenter (degree) 0.17807
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 102415371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-03-26 19:10:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BRIS.HHZ. 2022-03-26T19:03:02.25 0.3 undecidable manual S 67 19.7691 107 0.15 96
IV.SEI.HHZ. 2022-03-26T19:03:01.86 0.6 undecidable manual S 232 18.1707 108 0.28 63
IV.LMD.HHZ. 2022-03-26T19:03:00.93 0.3 undecidable manual S 123 16.0728 110 0.05 99
IV.MTRZ.HHZ. 2022-03-26T19:02:59.34 0.6 negative manual P 333 19.5693 107 0.29 62
IV.LMD.HHZ. 2022-03-26T19:02:58.16 0.6 negative manual P 123 16.0728 110 -0.22 64
IV.SEI.HHZ. 2022-03-26T19:02:58.69 0.6 undecidable manual P 232 18.1707 108 -0.09 65
IV.VISG.HHZ. 2022-03-26T19:02:58.64 0.3 undecidable manual S 294 8.9799 123 -0.06 100
IV.BRIS.HHZ. 2022-03-26T19:02:58.86 0.6 undecidable manual P 67 19.7691 107 -0.21 63
IV.VISG.HHZ. 2022-03-26T19:02:56.95 0.3 positive manual P 294 8.9799 123 -0.16 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SEI.HHE. ML:0.8 0.00005491967000000001 0.3712 AML other m 2022-03-26T19:03:02.52
IV.SEI.HHN. ML:1.0 0.0000994 0.28 AML other m 2022-03-26T19:03:02.38
IV.MTRZ.HHE. ML:1.0 0.00007627671499999999 0.3712 AML other m 2022-03-26T19:03:05.00
IV.MTRZ.HHN. ML:1.0 0.000084392975 0.4224 AML other m 2022-03-26T19:03:05.48
IV.VISG.HHE. ML:0.5 0.00005169832000000001 0.0768 AML other m 2022-03-26T19:02:59.33
IV.VISG.HHN. ML:0.6 0.00006425811500000001 0.0768 AML other m 2022-03-26T19:02:58.94
IV.LMD.HHE. ML:0.2 0.000012909186 0.2176 AML other m 2022-03-26T19:03:05.69
IV.LMD.HHN. ML:0.5 0.00002935861 0.0896 AML other m 2022-03-26T19:03:01.45
IV.BRIS.HNN. ML:1.2 0.00013795375 0.8064 AML other m 2022-03-26T19:03:02.48
IV.BRIS.HHE. ML:0.3 0.000014080245000000001 0.1408 AML other m 2022-03-26T19:03:02.55
IV.BRIS.HHN. ML:0.6 0.000028982605000000003 0.2176 AML other m 2022-03-26T19:03:02.60
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