Earthquake with magnitude of ML 0.5 on date 27-03-2022 and time 01:10:56 (Italy) in region 4 km N Palazzuolo sul Senio (FI)

A magnitude ML 0.5 earthquake occured in region: 4 km N Palazzuolo sul Senio (FI), on

  • 27-03-2022 00:10:56 (UTC)
  • 27-03-2022 01:10:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.1510, 11.5420 at 9 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
Palazzuolo sul Senio FI 4 1154 1154
Castel del Rio BO 8 1246 2400
Marradi FI 10 3139 5539
Casola Valsenio RA 11 2617 8156
Fontanelice BO 12 1943 10099
Firenzuola FI 13 4726 14825
Borgo Tossignano BO 15 3288 18113
Casalfiumanese BO 18 3438 21551
Tredozio FC 18 1212 22763
Monghidoro BO 20 3749 26512
Brisighella RA 20 7639 34151

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km SW of Imola (69797 inhabitants)
31 Km W of Faenza (58541 inhabitants)
41 Km W of Forlì (117913 inhabitants)
41 Km SE of Bologna (386663 inhabitants)
46 Km NE of Prato (191150 inhabitants)
48 Km NE of Firenze (382808 inhabitants)
52 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)
74 Km SE of Modena (184973 inhabitants)
77 Km S of Ferrara (133155 inhabitants)
81 Km NW of Arezzo (99543 inhabitants)
82 Km W of Rimini (147750 inhabitants)
88 Km SE of Carpi (70699 inhabitants)
90 Km E of Lucca (89046 inhabitants)
94 Km N of Siena (53903 inhabitants)
95 Km SE of Reggio nell'Emilia (171345 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
ML 0.5 2022-03-27
00:10:56
44.1508 11.5417 9 2022-07-08
12:33:39
Bollettino Sismico Italiano INGV 102608911
Reviewed
Rev100
ML 0.3 2022-03-27
00:10:56
44.1587 11.5328 10 2022-03-27
00:40:28
Sala Sismica INGV-Roma 102424761
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-03-27 00:10:56 ± 0.16
Latitude 44.1508 ± 0.0090
Longitude 11.5417 ± 0.0100
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 102608911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 822
Semi-minor axis of confidence ellipse (meter) 757
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 160
Circular confidence region, given by single value of horizontal uncertainty (meter) 820.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.42
Epicentral distance of station closest to the epicenter (degree) 0.08544
Epicentral distance of station farthest from the epicenter (degree) 0.30037
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.3
Num. used stations 9
Type of magnitude ML
Reference to an origin 102608911
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-05-23 10:28:27

ML:0.3

Field Value
Value 0.3
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 102424761
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-03-27 00:40:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FNVD.HHZ. 2022-03-27T00:11:08.35 0.6 undecidable manual S 273 33.3444 50 -0.12 49
IV.BOSL.HHE. 2022-03-27T00:11:07.75 0.6 undecidable manual S 209 27.8499 108 0.93 38
IV.MTRZ.HHZ. 2022-03-27T00:11:05.57 0.3 undecidable manual S 333 20.2686 114 1.21 50
IV.SEI.HHZ. 2022-03-27T00:11:04.11 0.3 undecidable manual S 234 18.0708 117 0.41 72
IV.BRIS.HHZ. 2022-03-27T00:11:04.31 0.3 undecidable manual S 65 19.6692 115 0.12 74
IV.FNVD.HHZ. 2022-03-27T00:11:03.02 0.3 undecidable manual P 273 33.3444 50 -0.46 70
IV.LMD.HHZ. 2022-03-27T00:11:03.08 0.3 undecidable manual S 122 15.4734 120 0.17 75
IV.BOSL.HHE. 2022-03-27T00:11:02.57 0.6 undecidable manual P 209 27.8499 108 0.04 49
IV.MTRZ.HHZ. 2022-03-27T00:11:01.22 0.1 undecidable manual P 333 20.2686 114 0.11 99
IV.VISG.HHZ. 2022-03-27T00:11:00.65 0.3 undecidable manual S 296 9.4794 134 -0.59 64
IV.BRIS.HHZ. 2022-03-27T00:11:00.81 0.1 undecidable manual P 65 19.6692 115 -0.2 99
IV.LMD.HHZ. 2022-03-27T00:11:00.11 0.1 undecidable manual P 122 15.4734 120 -0.16 99
IV.SEI.HHZ. 2022-03-27T00:11:00.67 0.1 undecidable manual P 234 18.0708 117 -0.05 100
IV.VISG.HHZ. 2022-03-27T00:10:58.91 0.1 undecidable manual P 296 9.4794 134 -0.4 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VISG.HHN. ML:0.7 0.00006670000000000001 0.2 AML other m 2022-03-27T00:11:00.78
IV.VISG.HHE. ML:0.5 0.00004415 0.92 AML other m 2022-03-27T00:11:01.13
IV.LMD.HHE. ML:0.0 0.000012339258499999999 2.34 AML other m 2022-03-27T00:11:03.38
IV.MTRZ.HHE. ML:0.6 0.00003234423 2.06 AML other m 2022-03-27T00:11:03.60
IV.LMD.HHN. ML:0.3 0.00002014765 0.16 AML other m 2022-03-27T00:11:03.87
IV.SEI.HHN. ML:0.6 0.00003729142 0.28 AML other m 2022-03-27T00:11:04.56
IV.BRIS.HHE. ML:0.1 0.000009426564 0.34 AML other m 2022-03-27T00:11:04.47
IV.BRIS.HHN. ML:0.4 0.000021562735 0.64 AML other m 2022-03-27T00:11:04.91
IV.MTRZ.HHN. ML:0.8 0.000052070620000000004 4.5 AML other m 2022-03-27T00:11:06.85
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