Earthquake with magnitude of ML 2.2 on date 21-05-2019 and time 17:22:52 (Italy) in region 2 km NW San Giovanni d'Asso (SI)

A magnitude ML 2.2 earthquake occured in region: 2 km NW San Giovanni d'Asso (SI), on

  • 21-05-2019 15:22:52 (UTC)
  • 21-05-2019 17:22:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.16, 11.58 at 7 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
San Giovanni d'Asso SI 2 853 853
Buonconvento SI 8 3173 4026
Trequanda SI 8 1254 5280
Asciano SI 8 7118 12398
San Quirico d'Orcia SI 12 2662 15060
Pienza SI 13 2107 17167
Montalcino SI 13 5093 22260
Rapolano Terme SI 14 5249 27509
Sinalunga SI 14 12764 40273
Monteroni d'Arbia SI 15 9088 49361
Murlo SI 15 2389 51750
Torrita di Siena SI 16 7434 59184
Castiglione d'Orcia SI 18 2346 61530
Montepulciano SI 18 14097 75627
Lucignano AR 19 3581 79208

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km SE of Siena (53903 inhabitants)
42 Km SW of Arezzo (99543 inhabitants)
58 Km NE of Grosseto (82087 inhabitants)
66 Km W of Perugia (166134 inhabitants)
72 Km SE of Firenze (382808 inhabitants)
74 Km SE of Scandicci (50609 inhabitants)
89 Km SE of Prato (191150 inhabitants)
93 Km NW of Viterbo (67173 inhabitants)
95 Km W of Foligno (57155 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 2.2 2019-05-21
15:22:52
43.16 11.58 7 2019-11-13
14:31:04
Bollettino Sismico Italiano INGV 72927291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-05-21 15:22:52 ± 0.15
Latitude 43.16 ± 0.01
Longitude 11.58 ± 0.01
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 72927291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 800
Semi-minor axis of confidence ellipse (meter) 368
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 75
Circular confidence region, given by single value of horizontal uncertainty (meter) 800
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.80309
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 13
Magnitude information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 36
Type of magnitude ML
Reference to an origin 72927291
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-09-30 14:49:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PTRJ.HNZ. 2019-05-21T15:24:11.94 3.0 undecidable manual Sg 8.5 0
IV.VBKN.HHZ. 2019-05-21T15:24:09.12 3.0 undecidable manual Sn -2.19 0
IT.MCLF.HNZ. 2019-05-21T15:24:04.68 3.0 undecidable manual Sn 4.07 0
IV.MCRV.HHZ. 2019-05-21T15:23:47.49 3.0 undecidable manual Pg 8.79 0
IV.VBKN.HHZ. 2019-05-21T15:23:39.67 3.0 negative manual Pg 6.81 0
IV.MAON.HHZ. 2019-05-21T15:23:08.96 0.3 undecidable manual P 204 0.8031 50 0.58 62
IV.PIEI.HHZ. 2019-05-21T15:23:08.10 0.3 undecidable manual P 62 0.7905 50 -0.07 69
IV.OSSC.HHZ. 2019-05-21T15:23:08.76 0.6 undecidable manual S 327 0.4335 50 -0.14 49
IV.ASQU.HHZ. 2019-05-21T15:23:06.26 0.6 undecidable manual P 14 0.6529 50 0.46 44
IV.CSNT.HHZ. 2019-05-21T15:23:06.56 0.3 undecidable manual S 326 0.3732 50 -0.57 66
IV.ATPI.EHZ. 2019-05-21T15:23:06.33 0.3 undecidable manual P 64 0.6664 50 0.28 68
TV.SF01.EHZ. 2019-05-21T15:23:05.46 0.6 undecidable manual S 181 0.3507 100 -0.95 37
IV.ATVO.HHZ. 2019-05-21T15:23:05.90 0.3 undecidable manual P 70 0.643 50 0.25 69
IV.BADI.EHZ. 2019-05-21T15:23:05.12 0.6 undecidable manual P 54 0.5971 50 0.26 46
IV.SSP9.EHZ. 2019-05-21T15:23:04.86 0.6 undecidable manual P 44 0.5765 50 0.36 46
IV.CAFI.HHZ. 2019-05-21T15:23:04.98 0.6 undecidable manual S 59 0.3301 101 -0.65 43
IV.FROS.CHZ. 2019-05-21T15:23:04.53 0.6 undecidable manual S 279 0.3094 102 -0.33 48
TV.SF04.EHZ. 2019-05-21T15:23:04.85 0.3 undecidable manual S 169 0.3318 101 -0.88 57
IV.OSSC.HHZ. 2019-05-21T15:23:01.91 0.3 undecidable manual P 327 0.4335 50 -0.15 73
IV.FROS.CHZ. 2019-05-21T15:23:00.27 0.1 undecidable manual P 279 0.3094 102 0.55 93
TV.SF04.EHZ. 2019-05-21T15:23:00.43 0.1 undecidable manual P 169 0.3318 101 0.2 100
TV.SF01.EHZ. 2019-05-21T15:23:00.99 0.1 undecidable manual P 181 0.3507 100 0.37 96
IV.CAFI.HHZ. 2019-05-21T15:23:00.06 0.3 undecidable manual P 59 0.3301 101 -0.11 75
IV.CSNT.HHZ. 2019-05-21T15:23:00.72 0.1 undecidable manual P 326 0.3732 50 -0.31 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FROS.CHE. ML:0 0.0017161595 0.448 AML other m 2019-05-21T15:23:05.91
IV.FROS.CHN. ML:0 0.001335587 0.2176 AML other m 2019-05-21T15:23:05.72
IV.SACS.HHE. ML:2 0.0003176761 0.1792 AML other m 2019-05-21T15:23:10.70
IV.SACS.HNN. ML:2.1 0.00040267585 0.2816 AML other m 2019-05-21T15:23:10.62
IV.SACS.HHN. ML:2 0.0003362828 0.2688 AML other m 2019-05-21T15:23:10.49
IV.SACS.HNE. ML:2 0.0002851965 0.1664 AML other m 2019-05-21T15:23:10.69
IV.MGAB.HNN. ML:2.3 0.000459349 0.1536 AML other m 2019-05-21T15:23:11.42
IV.MGAB.HHN. ML:2.3 0.0004830003 0.1536 AML other m 2019-05-21T15:23:13.54
IV.MGAB.HHE. ML:2.2 0.0004155756 0.192 AML other m 2019-05-21T15:23:13.09
IV.MGAB.HNE. ML:2.2 0.0003643 0.1408 AML other m 2019-05-21T15:23:13.09
IV.CAFI.HNN. ML:2 0.00036946795 0.2048 AML other m 2019-05-21T15:23:07.81
IV.CAFI.HHN. ML:2 0.00039140725 0.2048 AML other m 2019-05-21T15:23:07.92
IV.CAFI.HNE. ML:2 0.00036888975 0.3968 AML other m 2019-05-21T15:23:08.54
IV.CAFI.HHE. ML:2 0.00038885355 0.4224 AML other m 2019-05-21T15:23:08.52
TV.SF04.EHE. ML:2.7 0.001874616 0.1408 AML other m 2019-05-21T15:23:06.71
TV.SF04.EHN. ML:2.8 0.0022498285 0.256 AML other m 2019-05-21T15:23:07.42
IV.CSNT.HHN. ML:2.6 0.0012662405 0.0896 AML other m 2019-05-21T15:23:07.05
IV.CSNT.HHE. ML:2.4 0.00090019555 0.1024 AML other m 2019-05-21T15:23:07.05
TV.SF01.EHE. ML:2.2 0.0006524127 0.3456 AML other m 2019-05-21T15:23:07.34
TV.SF01.EHN. ML:2.3 0.0007491225 0.3968 AML other m 2019-05-21T15:23:09.05
IV.OSSC.HHE. ML:2.2 0.0004752215 0.1792 AML other m 2019-05-21T15:23:09.21
IV.OSSC.HNN. ML:2.2 0.0004782811 0.1792 AML other m 2019-05-21T15:23:09.21
IV.OSSC.HNE. ML:2.1 0.00038127615 0.1536 AML other m 2019-05-21T15:23:09.15
IV.OSSC.HHN. ML:2.1 0.00038627895 0.1536 AML other m 2019-05-21T15:23:09.15
IV.SSP9.EHE. ML:2.5 0.0005665 0.62 AML other m 2019-05-21T15:23:17.60
IV.SSP9.EHN. ML:2.3 0.0003855144 0.3456 AML other m 2019-05-21T15:23:18.05
IV.BADI.EHN. ML:2.3 0.0003511693 0.5376 AML other m 2019-05-21T15:23:18.71
IV.BADI.EHE. ML:2.3 0.00038764105 0.4608 AML other m 2019-05-21T15:23:18.37
IV.ATVO.HHN. ML:2.4 0.00039512255 0.5504 AML other m 2019-05-21T15:23:18.81
IV.ATVO.HHE. ML:2.4 0.0003637245 0.2944 AML other m 2019-05-21T15:23:19.62
IV.ASQU.HHN. ML:2.2 0.00024572635 0.3712 AML other m 2019-05-21T15:23:21.16
IV.ASQU.HHE. ML:2.3 0.00034904745 0.4992 AML other m 2019-05-21T15:23:16.41
IV.ATPI.EHN. ML:2.3 0.0003284473 0.4224 AML other m 2019-05-21T15:23:20.49
IV.ATPI.EHE. ML:2 0.0001721111 0.4992 AML other m 2019-05-21T15:23:10.56
IV.PIEI.HHN. ML:2.1 0.00015445208 0.4224 AML other m 2019-05-21T15:23:24.49
IV.PIEI.HHE. ML:2 0.00013181675 0.3456 AML other m 2019-05-21T15:23:09.98
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download