Earthquake with magnitude of ML 3.3 on date 16-02-2008 and time 23:12:16 (Italy) in region 8 km W Monterotondo Marittimo (GR)

A magnitude ML 3.3 earthquake occured in region: 8 km W Monterotondo Marittimo (GR), on

  • 16-02-2008 22:12:16 (UTC)
  • 16-02-2008 23:12:16 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1120, 10.7700 at 16 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
Monterotondo Marittimo GR 8 1371 1371
Suvereto LI 8 3072 4443
Monteverdi Marittimo PI 9 758 5201
Sassetta LI 10 514 5715
Massa Marittima GR 12 8375 14090
Campiglia Marittima LI 14 13218 27308
Castagneto Carducci LI 14 9010 36318
Castelnuovo di Val di Cecina PI 15 2231 38549
San Vincenzo LI 19 6911 45460

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km NW of Grosseto (82087 inhabitants)
51 Km W of Siena (53903 inhabitants)
62 Km SE of Livorno (159219 inhabitants)
74 Km SE of Pisa (89158 inhabitants)
79 Km SW of Scandicci (50609 inhabitants)
83 Km SW of Firenze (382808 inhabitants)
84 Km S of Lucca (89046 inhabitants)
90 Km SW of Prato (191150 inhabitants)
92 Km S of Pistoia (90315 inhabitants)
94 Km SE of Viareggio (62467 inhabitants)
98 Km W of Arezzo (99543 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap

These three maps show the results of the analysis using the software ShakeMap designed to provide the level of ground shaking experienced in a region using the data recorded by seismometers and strong motion instruments and seismological information regarding the attenuation of the wavefield with distance and the site characteristics. The Shakemaps are determined for research purposes to provide fast estimates of the level of ground shaking produced by the earthquake. The maps are calculated automatically and updated as more data become available. See http://shakemap.ingv.it for additional information. The black star indicates the epicenter. The triangles show the accelerometric and velocimetric stations used in the calculation, colored according to the recorded shaking.

Intensity Shakemap

Intensity Shakemap

This map shows the distribution of instrumental intensities. The intensity is derived through an empirical law that correlates the recorded values of actual ground shaking, e.g., acceleration and velocity, with the macroseismic intensity for Italian earthquakes, as reported in the Italian Macroseismic Database (DBMI15, https://doi.org/10.13127/cpti/cpti15.3).
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap

This map shows the distribution of peak ground acceleration expressed as percent of the acceleration of gravity (i.e., g = 9.81 m/s²).
Peak velocity Shakemap

Peak velocity Shakemap

This map shows the distribution of peak ground velocities expressed in cm/s.
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 3.3 2008-02-16
22:12:16
43.112 10.77 16 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 674309
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2008-02-16 22:12:16 ± 0.14
Latitude 43.1120 ± 0.0072
Longitude 10.7700 ± 0.0148
Depth (km) 16 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 674309

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1164
Semi-minor axis of confidence ellipse (meter) 426
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 254
Circular confidence region, given by single value of horizontal uncertainty (meter) 1442.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 158
Number of associated phases, regardless of their use for origin computation 90
Number of defining phases 42
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.90836
Number of stations at which the event was observed 74
Number of stations from which data was used for origin computation 34
Magnitude information

ML:3.3

Field Value
Value 3.3
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 674309
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 12:47:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.MMK.HHN. 2008-02-16T22:13:21.40 10.0 undecidable manual Pn 0 0 0
GU.TRAV.HHE. 2008-02-16T22:13:17.54 10.0 undecidable manual Pn 0 0 0
CH.DAVOX.HHZ. 2008-02-16T22:13:17.51 10.0 undecidable manual Pn 0 0 0
IV.PTCC.SHZ. 2008-02-16T22:13:15.18 10.0 undecidable manual Pn 0 0 0
CH.FUORN.HHN. 2008-02-16T22:13:14.96 10.0 undecidable manual Sn 0 0 0
MN.VSL.HHN. 2008-02-16T22:13:14.59 10.0 undecidable manual Pn 0 0 0
CH.MUGIO.HHE. 2008-02-16T22:13:13.22 10.0 undecidable manual Sn 0 0 0
IV.GMNA.SHZ. 2008-02-16T22:13:13.35 10.0 undecidable manual Pn 0 0 0
MN.TUE.HHN. 2008-02-16T22:13:13.07 10.0 undecidable manual Pn 0 0 0
IV.BRMO.BHE. 2008-02-16T22:13:12.03 10.0 undecidable manual Pn 0 0 0
GU.PZZ.HHZ. 2008-02-16T22:13:12.72 10.0 undecidable manual Sn 0 0 0
CH.FUORN.HHN. 2008-02-16T22:13:11.84 10.0 undecidable manual Pn 0 0 0
CH.BERNI.HHN. 2008-02-16T22:13:11.93 10.0 undecidable manual Pn 0 0 0
IV.APPI.EHZ. 2008-02-16T22:13:10.96 10.0 undecidable manual Pn 0 0 0
IV.ORO.SHZ. 2008-02-16T22:13:08.27 10.0 undecidable manual Pn 0 0 0
CH.MUGIO.HHE. 2008-02-16T22:13:07.69 10.0 undecidable manual Pn 0 0 0
IV.MABI.HHN. 2008-02-16T22:13:05.01 10.0 undecidable manual Pn 0 0 0
IV.MONC.HHZ. 2008-02-16T22:13:05.55 10.0 undecidable manual Pn 0 0 0
IV.CTI.SHZ. 2008-02-16T22:13:05.50 10.0 undecidable manual Pn 0 0 0
GU.PZZ.HHZ. 2008-02-16T22:13:04.59 10.0 undecidable manual Pn 0 0 0
IV.DOI.HHZ. 2008-02-16T22:13:03.17 10.0 undecidable manual Pn 0 0 0
IV.MDI.HHZ. 2008-02-16T22:13:02.86 10.0 undecidable manual Pn 0 0 0
GU.STV.HHE. 2008-02-16T22:13:01.72 10.0 undecidable manual Pn 0 0 0
IV.MAGA.BHN. 2008-02-16T22:13:01.77 10.0 undecidable manual Pn 0 0 0
IV.SALO.HHZ. 2008-02-16T22:13:00.46 10.0 undecidable manual Pn 0 0 0
IV.SBPO.BHE. 2008-02-16T22:13:00.44 10.0 undecidable manual Sg 0 0 0
IV.SDI.SHZ. 2008-02-16T22:13:00.75 10.0 undecidable manual Pn 0 0 0
IV.IMI.HHE. 2008-02-16T22:12:59.68 10.0 undecidable manual Pn 0 0 0
IV.QLNO.HHE. 2008-02-16T22:12:58.72 10.0 undecidable manual Sn 0 0 0
GU.PCP.HHZ. 2008-02-16T22:12:58.06 10.0 undecidable manual Pn 0 0 0
IV.FAGN.BHZ. 2008-02-16T22:12:56.56 10.0 undecidable manual Pn 0 0 0
IV.VAI.SHZ. 2008-02-16T22:12:55.08 10.0 undecidable manual Pn 0 0 0
IV.QLNO.HHE. 2008-02-16T22:12:55.66 10.0 undecidable manual Pn 0 0 0
IV.AQU.SHZ. 2008-02-16T22:12:54.43 10.0 undecidable manual Pg 0 0 0
IV.PTQR.SHZ. 2008-02-16T22:12:54.63 10.0 undecidable manual Pn 0 0 0
IV.SBPO.BHE. 2008-02-16T22:12:53.40 10.0 undecidable manual Pg 0 0 0
IV.CMPO.BHE. 2008-02-16T22:12:52.75 10.0 undecidable manual Sg 0 0 0
IV.CING.HHZ. 2008-02-16T22:12:52.97 10.0 undecidable manual Sg 0 0 0
MN.VLC.HHN. 2008-02-16T22:12:51.78 0.6 undecidable manual Sg 345 120.1908 0.392 42
IV.NOVE.EHZ. 2008-02-16T22:12:50.03 0.3 undecidable manual Pg 359 187.0683 3.764 2
IV.CMPO.BHE. 2008-02-16T22:12:49.15 10.0 undecidable manual Pg 0 0 0
IV.BOB.HHZ. 2008-02-16T22:12:49.95 0.3 undecidable manual Pg 331 211.8324 0.601 41
IV.CING.HHZ. 2008-02-16T22:12:49.16 10.0 undecidable manual Pg 0 0 0
IV.GIUL.BHZ. 2008-02-16T22:12:49.11 10.0 undecidable manual Pg 0 0 0
IV.RAVA.EHE. 2008-02-16T22:12:49.94 0.3 undecidable manual Pg 9 184.4709 3.998 2
IV.FAEN.HHZ. 2008-02-16T22:12:48.40 10.0 undecidable manual Pg 0 0 0
IV.CRE.BHZ. 2008-02-16T22:12:48.91 0.6 undecidable manual Sg 59 110.6004 0.057 45
IV.FIU.EHN. 2008-02-16T22:12:48.39 0.6 undecidable manual Pg 19 179.0874 3.121 2
IV.LNSS.BHZ. 2008-02-16T22:12:47.10 0.3 undecidable manual Pg 106 193.0623 0.09 50
IV.NRCA.SHZ. 2008-02-16T22:12:47.42 0.3 undecidable manual Pg 98 192.7626 0.448 47
IV.FSSB.BHE. 2008-02-16T22:12:44.49 0.1 undecidable manual Pg 68 174.0924 -0.161 72
IV.CESI.BHZ. 2008-02-16T22:12:44.36 0.1 undecidable manual Pg 93 173.3931 -0.207 72
IV.SNTG.SHZ. 2008-02-16T22:12:44.46 0.6 undecidable manual Pg 84 176.2902 -0.461 34
IV.MNS.BHE. 2008-02-16T22:12:44.30 0.1 undecidable manual Pg 117 175.2912 -0.505 67
IV.RSM.BHZ. 2008-02-16T22:12:44.83 0.6 undecidable manual Pg 56 162.7149 1.589 22
GU.SC2M.HHZ. 2008-02-16T22:12:44.38 0.1 undecidable manual Pg 326 174.1923 -0.282 70
GU.MAIM.HHZ. 2008-02-16T22:12:42.67 0.6 undecidable manual Sg 346 91.7415 -1.144 32
IV.GROG.HHE. 2008-02-16T22:12:41.84 10.0 undecidable manual Sg 0 0 0
IV.ZCCA.BHZ. 2008-02-16T22:12:41.36 0.3 undecidable manual Pg 7 138.3615 1.769 31
IV.CERA.HHE. 2008-02-16T22:12:41.47 10.0 undecidable manual Pg 0 0 0
IV.ERBM.EHZ. 2008-02-16T22:12:41.41 0.3 undecidable manual Pg 349 147.8409 0.365 59
IV.MAON.HHZ. 2008-02-16T22:12:41.54 0.6 undecidable manual Sg 159 81.3519 0.485 43
IV.ASS.SHZ. 2008-02-16T22:12:41.61 0.3 undecidable manual Pg 91 152.5362 -0.16 61
IV.MURB.HHZ. 2008-02-16T22:12:40.35 0.3 undecidable manual Pg 83 142.8459 0.069 63
IV.PIEI.BHE. 2008-02-16T22:12:40.99 0.3 undecidable manual Pg 71 149.9388 -0.382 58
IV.VVLD.BHE. 2008-02-16T22:12:40.97 10.0 undecidable manual Pg 0 0 0
IV.BADI.EHE. 2008-02-16T22:12:38.09 0.1 undecidable manual Pg 69 126.873 0.272 84
IV.SFI.EHN. 2008-02-16T22:12:37.39 0.1 undecidable manual Pg 44 123.3876 0.103 88
MN.VLC.HHN. 2008-02-16T22:12:37.00 0.1 undecidable manual Pg 345 120.1908 0.217 87
IV.FNVD.HHN. 2008-02-16T22:12:37.30 0.1 undecidable manual Pg 13 120.4905 0.465 82
IV.CDCA.SHZ. 2008-02-16T22:12:37.47 0.1 undecidable manual Pg 71 124.2867 0.054 88
IV.PII.SHZ. 2008-02-16T22:12:36.96 0.3 undecidable manual Sg 344 70.4739 -1.192 48
IV.SEI.SHZ. 2008-02-16T22:12:36.34 0.1 undecidable manual Pg 24 114.6963 0.4 84
IV.VMG.SHZ. 2008-02-16T22:12:35.92 0.1 undecidable manual Pg 33 112.8981 0.253 87
IV.CAFI.HHZ. 2008-02-16T22:12:35.36 10.0 undecidable manual Pg 0 0 0
IV.ARCI.HHZ. 2008-02-16T22:12:35.53 0.3 undecidable manual Sg 117 64.0914 -0.935 58
IV.CRE.BHZ. 2008-02-16T22:12:35.51 0.1 undecidable manual Pg 59 110.6004 0.192 88
IV.BDI.HHZ. 2008-02-16T22:12:34.65 0.1 undecidable manual Pg 353 106.3158 -0.004 92
IV.GROG.HHE. 2008-02-16T22:12:33.69 10.0 undecidable manual Pg 0 0 0
IV.SACS.HHE. 2008-02-16T22:12:33.58 0.1 undecidable manual Pg 107 97.0251 0.361 87
IV.CSNT.BHZ. 2008-02-16T22:12:32.84 0.3 undecidable manual Sg 46 57.9975 -2.004 29
GU.MAIM.HHZ. 2008-02-16T22:12:32.37 0.1 positive manual Pg 346 91.7415 -0.043 94
IV.MAON.HHZ. 2008-02-16T22:12:31.64 0.1 undecidable manual Pg 159 81.3519 0.825 76
IV.CRMI.HHZ. 2008-02-16T22:12:30.06 0.1 positive manual Pg 12 76.8675 -0.065 96
IV.PII.SHZ. 2008-02-16T22:12:29.13 0.1 positive manual Pg 344 70.4739 -0.007 98
IV.CASP.HHZ. 2008-02-16T22:12:28.66 0.6 undecidable manual Sg 168 36.4413 -0.514 48
IV.ARCI.HHZ. 2008-02-16T22:12:27.92 0.1 undecidable manual Pg 117 64.0914 -0.245 96
IV.CSNT.BHZ. 2008-02-16T22:12:26.37 0.1 positive manual Pg 46 57.9975 -0.865 79
IV.CASP.HHZ. 2008-02-16T22:12:23.67 0.1 positive manual Pg 168 36.4413 -0.282 100
IV.MRLC.HHE. 2008-02-16T22:12:12.67 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, /tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols 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 miniseed + resp format Download