Earthquake with magnitude of ML 2.0 on date 08-11-2018 and time 05:01:54 (UTC) in region 5 km SW Castiglione d'Orcia (SI)

A magnitude ML 2.0 earthquake occured in region: 5 km SW Castiglione d'Orcia (SI), on

  • 08-11-2018 05:01:54 (UTC)
  • 08-11-2018 06:01:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.98, 11.57 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
Castiglione d'Orcia SI 5 2346 2346
Seggiano GR 6 961 3307
San Quirico d'Orcia SI 9 2662 5969
Castel del Piano GR 10 4690 10659
Montalcino SI 11 5093 15752
Arcidosso GR 12 4285 20037
Pienza SI 14 2107 22144
Abbadia San Salvatore SI 14 6444 28588
Santa Fiora GR 17 2622 31210
Cinigiano GR 17 2618 33828
Piancastagnaio SI 18 4230 38058
Radicofani SI 19 1097 39155
Buonconvento SI 19 3173 42328
San Giovanni d'Asso SI 19 853 43181

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km SE of Siena (53903 inhabitants)
44 Km NE of Grosseto (82087 inhabitants)
60 Km SW of Arezzo (99543 inhabitants)
68 Km W of Perugia (166134 inhabitants)
76 Km NW of Viterbo (67173 inhabitants)
91 Km S of Firenze (382808 inhabitants)
92 Km SE of Scandicci (50609 inhabitants)
92 Km W of Foligno (57155 inhabitants)
100 Km W of Terni (111501 inhabitants)
101 Km N of Civitavecchia (52991 inhabitants)
Recent and historical Seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours) *

This map reports the earthquake epicenters located in the past 72 hours (3 days) from the time this page has been generated. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985 *

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2014

Earthquakes since 1000 AD until 2014 *

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire *

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 1000 ML 2.0 2018-11-08
05:01:54
42.98 11.57 10 2019-06-04
09:16:03
Bollettino Sismico Italiano INGV 63965161
Rev 100 ML 2.1 2018-11-08
05:01:54
42.99 11.61 10 2018-11-08
05:11:06
Sala Sismica INGV-Roma 62885661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-11-08 05:01:54 ± 0.1
Latitude 42.98 ± 0.01
Longitude 11.57 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 63965161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 632
Semi-minor axis of confidence ellipse (meter) 577
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 180
Circular confidence region, given by single value of horizontal uncertainty (meter) 630
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 55
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 46
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) 0.1385
Epicentral distance of station farthest from the epicenter (degree) 1.12415
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 27
Magnitudes information

ML:2

Field Value
Value 2
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 63965161
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-12-17 10:50:15

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 62885661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-11-08 05:11:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RUFI.EHE. 2018-11-08T05:02:22.75 0.1 undecidable manual S 357 0.8571 50 -0.01 86
IV.ASQU.HHZ. 2018-11-08T05:02:21.83 0.1 undecidable manual S 11 0.8301 50 -0.14 85
IV.PARC.HHZ. 2018-11-08T05:02:21.84 0.1 undecidable manual S 36 0.8256 50 0.02 87
IV.MURB.HHZ. 2018-11-08T05:02:20.20 0.1 undecidable manual S 68 0.7518 50 0.57 77
IV.MOMA.HNZ. 2018-11-08T05:02:19.87 0.3 undecidable manual S 103 0.7536 50 0.18 64
IV.MTCR.EHZ. 2018-11-08T05:02:16.04 0.3 undecidable manual P 339 1.1242 50 0.63 52
IV.OSSC.HHZ. 2018-11-08T05:02:14.86 0.1 undecidable manual S 337 0.5909 50 -0.01 91
IV.TRIF.HHZ. 2018-11-08T05:02:12.06 0.1 undecidable manual S 286 0.5054 50 -0.26 88
IV.CSNT.HHZ. 2018-11-08T05:02:12.53 0.1 undecidable manual S 338 0.5324 50 -0.6 80
IV.PIEI.HHZ. 2018-11-08T05:02:11.61 0.1 undecidable manual P 51 0.8948 50 0.12 84
IV.CRMI.HHZ. 2018-11-08T05:02:11.22 0.1 undecidable manual P 332 0.92 50 -0.7 71
IV.RUFI.EHE. 2018-11-08T05:02:11.52 0.1 undecidable manual P 357 0.8571 50 0.67 73
IV.PARC.HHZ. 2018-11-08T05:02:10.25 0.1 undecidable manual P 36 0.8256 50 -0.05 86
IV.ASSB.HHN. 2018-11-08T05:02:10.27 0.3 undecidable manual P 85 0.7986 50 0.43 60
IV.ASQU.HHZ. 2018-11-08T05:02:10.74 0.1 undecidable manual P 11 0.8301 50 0.35 81
IV.MOMA.HNZ. 2018-11-08T05:02:09.76 0.3 undecidable manual P 103 0.7536 50 0.68 56
IV.MURB.HHZ. 2018-11-08T05:02:09.39 0.1 undecidable manual P 68 0.7518 50 0.35 82
IV.RIBO.EHZ. 2018-11-08T05:02:08.40 0.1 undecidable manual S 265 0.384 50 -0.33 89
IV.LATE.HHZ. 2018-11-08T05:02:08.97 0.1 undecidable manual S 155 0.4056 50 -0.41 87
IV.CRE.HHZ. 2018-11-08T05:02:08.22 0.1 undecidable manual P 23 0.6952 50 0.14 87
IV.MAON.HHZ. 2018-11-08T05:02:07.95 0.1 undecidable manual P 210 0.6394 50 0.82 71
IV.FROS.HHZ. 2018-11-08T05:02:07.87 0.1 undecidable manual S 307 0.3786 50 -0.7 79
IV.ATTE.HHZ. 2018-11-08T05:02:06.34 0.1 undecidable manual P 69 0.6115 50 -0.31 85
IV.OSSC.HHZ. 2018-11-08T05:02:05.84 0.1 undecidable manual P 337 0.5909 50 -0.45 83
IV.TRIF.HHZ. 2018-11-08T05:02:05.64 0.1 undecidable manual P 286 0.5054 50 0.82 74
IV.CSNT.HHZ. 2018-11-08T05:02:04.72 0.1 undecidable manual P 338 0.5324 50 -0.56 81
IV.CAFI.HHZ. 2018-11-08T05:02:03.23 0.1 positive manual P 40 0.4524 50 -0.69 79
IV.RIBO.EHZ. 2018-11-08T05:02:03.27 0.1 undecidable manual P 265 0.384 50 0.52 85
IV.LATE.HHZ. 2018-11-08T05:02:03.34 0.1 undecidable manual P 155 0.4056 50 0.22 91
IV.MCIV.HHZ. 2018-11-08T05:02:02.94 0.1 undecidable manual S 159 0.2167 112 -0.63 84
TV.SF01.EHZ. 2018-11-08T05:02:02.05 0.1 undecidable manual S 182 0.1691 117 0.16 96
TV.SF03.EHN. 2018-11-08T05:02:02.40 0.1 undecidable manual S 154 0.1979 114 -0.47 90
IV.FROS.HHZ. 2018-11-08T05:02:02.61 0.1 undecidable manual P 307 0.3786 50 -0.05 95
TV.SF14.HHE. 2018-11-08T05:02:02.99 0.1 undecidable manual S 172 0.2284 111 -0.99 72
TV.SF13.HHE. 2018-11-08T05:02:01.73 0.1 undecidable manual S 167 0.1664 117 -0.07 98
TV.SF04.EHZ. 2018-11-08T05:02:01.22 0.1 undecidable manual S 155 0.1601 118 -0.35 93
IV.ARCI.HHZ. 2018-11-08T05:02:01.91 0.1 undecidable manual S 208 0.1466 121 0.79 80
TV.SF11.HHE. 2018-11-08T05:02:00.46 0.1 undecidable manual S 145 0.1385 122 -0.38 92
TV.SF03.EHN. 2018-11-08T05:01:59.51 0.1 positive manual P 154 0.1979 114 0.14 96
TV.SF14.HHE. 2018-11-08T05:01:59.76 0.1 positive manual P 172 0.2284 111 -0.24 94
TV.SF13.HHE. 2018-11-08T05:01:59.07 0.1 positive manual P 167 0.1664 117 0.32 93
IV.MCIV.HHZ. 2018-11-08T05:01:59.88 0.1 positive manual P 159 0.2167 112 0.11 96
TV.SF01.EHZ. 2018-11-08T05:01:59.16 0.1 positive manual P 182 0.1691 117 0.36 92
TV.SF04.EHZ. 2018-11-08T05:01:58.77 0.1 positive manual P 155 0.1601 118 0.16 97
IV.ARCI.HHZ. 2018-11-08T05:01:58.82 0.1 positive manual P 208 0.1466 121 0.47 91
TV.SF11.HHE. 2018-11-08T05:01:58.20 0.1 undecidable manual P 145 0.1385 122 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIEI.HHN. ML:1.9 7.9354315E-5 0.48 AML other m 2018-11-08T05:02:29.80
TV.SF04.EHE. ML:2.7 0.004163531 0.24 AML other m 2018-11-08T05:02:01.52
TV.SF04.EHN. ML:2.8 0.005842009 0.2592 AML other m 2018-11-08T05:02:01.49
IV.ARCI.HHN. ML:2.4 0.002025224 0.2208 AML other m 2018-11-08T05:02:02.49
IV.MCIV.HHE. ML:2.3 0.0011502815 0.256 AML other m 2018-11-08T05:02:05.26
IV.MCIV.HHN. ML:2.2 0.00102259025 0.2016 AML other m 2018-11-08T05:02:05.49
IV.FROS.HHE. ML:2.3 0.00063629295 0.4064 AML other m 2018-11-08T05:02:11.22
IV.FROS.HHN. ML:2.3 0.0006716848 0.1696 AML other m 2018-11-08T05:02:09.14
IV.CAFI.HHN. ML:1.7 0.00011871795 0.24 AML other m 2018-11-08T05:02:12.02
IV.CAFI.HNE. ML:1.9 0.0002179892 0.32 AML other m 2018-11-08T05:02:12.29
IV.CAFI.HNN. ML:1.7 0.000121604444 0.32 AML other m 2018-11-08T05:02:12.28
IV.RIBO.EHE.01 ML:2.4 0.0008274423 0.2208 AML other m 2018-11-08T05:02:10.68
IV.LATE.HHE. ML:1.9 0.00025819275 0.2208 AML other m 2018-11-08T05:02:10.13
IV.CSNT.HHE. ML:1.9 0.00018135015 0.24 AML other m 2018-11-08T05:02:13.44
IV.CSNT.HHN. ML:2 0.00019967045 0.2784 AML other m 2018-11-08T05:02:13.74
IV.OSSC.HHE. ML:1.8 0.0001058412 0.1792 AML other m 2018-11-08T05:02:16.04
IV.OSSC.HNN. ML:2 0.00020448425 0.56 AML other m 2018-11-08T05:02:16.51
IV.ATTE.HHN. ML:2 0.00018689155 0.4224 AML other m 2018-11-08T05:02:17.65
IV.ATTE.HHE. ML:2.2 0.00024289215 0.5408 AML other m 2018-11-08T05:02:18.06
IV.CRE.HHN. ML:2 0.00016186325 0.2592 AML other m 2018-11-08T05:02:21.54
IV.MURB.HNN. ML:2.9 0.0010202254 0.2688 AML other m 2018-11-08T05:02:22.32
IV.MURB.HHE. ML:2.7 0.00071515405 0.2592 AML other m 2018-11-08T05:02:22.69
IV.MURB.HNE. ML:2.7 0.0006600698 0.2592 AML other m 2018-11-08T05:02:22.71
IV.MURB.HHN. ML:2.9 0.001061984 0.2816 AML other m 2018-11-08T05:02:22.32
IV.ASQU.HHE. ML:2.2 0.00019313415 0.32 AML other m 2018-11-08T05:02:23.05
IV.PIEI.HHE. ML:1.8 5.7714315E-5 0.32 AML other m 2018-11-08T05:02:30.78
IV.MTCR.EHN. ML:1.6 3.1458335E-5 0.7008 AML other m 2018-11-08T05:02:38.50
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms *

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol scales with the calculated moment magnitude, Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in full SEED format Download