Earthquake with magnitude of ML 3.0 on date 19-01-2011 and time 14:06:58 (UTC) in region 4 km SE San Gemini (TR)

A magnitude ML 3.0 earthquake occured in region: 4 km SE San Gemini (TR), on

  • 19-01-2011 14:06:58 (UTC)
  • 19-01-2011 15:06:58 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5890, 12.5780 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 Gemini TR 4 5018 5018
Terni TR 7 111501 116519
Narni TR 9 19785 136304
Montecastrilli TR 10 5022 141326
Acquasparta TR 12 4778 146104
Stroncone TR 12 4917 151021
Amelia TR 14 11897 162918
Avigliano Umbro TR 14 2558 165476
Montefranco TR 16 1276 166752
Arrone TR 16 2763 169515
Ferentillo TR 18 1913 171428
Configni RI 19 633 172061
Colli sul Velino RI 19 533 172594
Labro RI 20 374 172968
Otricoli TR 20 1869 174837

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km W of Terni (111501 inhabitants)
42 Km S of Foligno (57155 inhabitants)
43 Km E of Viterbo (67173 inhabitants)
60 Km S of Perugia (166134 inhabitants)
67 Km N of Guidonia Montecelio (88673 inhabitants)
72 Km N of Tivoli (56533 inhabitants)
72 Km W of L'Aquila (69753 inhabitants)
78 Km N of Roma (2864731 inhabitants)
85 Km NE of Civitavecchia (52991 inhabitants)
93 Km W of Teramo (54892 inhabitants)
95 Km NE of Fiumicino (78395 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
Md 3.1
ML 3.0
2011-01-19
14:06:58
42.589 12.578 7 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1163549
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-01-19 14:06:58 ± 0.08
Latitude 42.5890 ± 0.0036
Longitude 12.5780 ± 0.0049
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1163549

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 419
Semi-minor axis of confidence ellipse (meter) 147
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 237
Circular confidence region, given by single value of horizontal uncertainty (meter) 565.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 54
Number of associated phases, regardless of their use for origin computation 93
Number of defining phases 49
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.27434
Number of stations at which the event was observed 71
Number of stations from which data was used for origin computation 33
Magnitudes information

ML:3.0

Field Value
Value 3.0
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 1163549
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 22:39:51

Md:3.1

Field Value
Value 3.1
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1163549
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 22:39:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.VSL.HHE. 2011-01-19T14:08:46.72 10.0 undecidable manual Sn 0 0 0
HL.KEK.BHN. 2011-01-19T14:08:04.63 10.0 undecidable manual Pn 0 0 0
MN.VSL.HHE. 2011-01-19T14:08:00.47 10.0 undecidable manual Pn 0 0 0
IV.SGRT.HHN. 2011-01-19T14:07:50.02 10.0 undecidable manual Sn 0 0 0
IV.FIR.HHE. 2011-01-19T14:07:49.88 10.0 undecidable manual Pn 0 0 0
IV.RSM.HHE. 2011-01-19T14:07:48.52 10.0 undecidable manual Pn 0 0 0
IV.MSAG.HHN. 2011-01-19T14:07:47.97 10.0 undecidable manual Pn 0 0 0
IV.SENI.EHE. 2011-01-19T14:07:44.58 10.0 undecidable manual Sn 0 0 0
IV.SGRT.HHN. 2011-01-19T14:07:43.77 10.0 undecidable manual Pn 0 0 0
IV.GATE.HHN. 2011-01-19T14:07:41.65 10.0 undecidable manual Pn 0 0 0
IV.CIGN.HHZ. 2011-01-19T14:07:41.84 10.0 undecidable manual Pn 0 0 0
IV.MAON.HHE. 2011-01-19T14:07:37.58 10.0 undecidable manual Sg 0 0 0
IV.SGG.HHE. 2011-01-19T14:07:35.11 10.0 undecidable manual Pn 0 0 0
IV.PTRJ.HHZ. 2011-01-19T14:07:34.22 10.0 undecidable manual Pn 0 0 0
IV.SEI.SHZ. 2011-01-19T14:07:34.79 10.0 undecidable manual Pn 0 0 0
IV.SENI.EHE. 2011-01-19T14:07:33.75 10.0 undecidable manual Pn 0 0 0
IV.VMG.SHZ. 2011-01-19T14:07:30.21 10.0 undecidable manual Pn 0 0 0
IV.TRTR.HHE. 2011-01-19T14:07:28.60 10.0 undecidable manual Sn 0 0 0
IV.CSNT.HHN. 2011-01-19T14:07:28.04 10.0 undecidable manual Sn 0 0 0
IV.CAFR.HHZ. 2011-01-19T14:07:27.10 10.0 undecidable manual Pn 0 0 0
IV.SFI.EHN. 2011-01-19T14:07:27.12 10.0 undecidable manual Pn 0 0 0
IV.TERO.HHE. 2011-01-19T14:07:24.32 0.3 undecidable manual Sg 87 83.8494 0.129 69
IV.CSNT.HHN. 2011-01-19T14:07:24.89 10.0 undecidable manual Pn 0 0 0
IV.INTR.HHN. 2011-01-19T14:07:23.07 10.0 undecidable manual Pn 0 0 0
IV.TRIF.HHZ. 2011-01-19T14:07:23.52 10.0 undecidable manual Pn 0 0 0
IV.GRFL.SHZ. 2011-01-19T14:07:23.07 10.0 undecidable manual Pn 0 0 0
IV.PESA.HHE. 2011-01-19T14:07:23.30 10.0 undecidable manual Pn 0 0 0
IV.CERT.HHZ. 2011-01-19T14:07:23.06 0.1 undecidable manual Sg 155 78.366 0.346 89
IV.TOLF.HHZ. 2011-01-19T14:07:22.25 0.3 undecidable manual Sg 219 75.0693 0.421 66
IV.AOI.HHZ. 2011-01-19T14:07:22.12 10.0 undecidable manual Pn 0 0 0
IV.MURB.HHZ. 2011-01-19T14:07:22.66 0.3 undecidable manual Sg 357 74.8695 0.865 56
IV.PLLN.SHE. 2011-01-19T14:07:22.26 10.0 undecidable manual Pn 0 0 0
IV.ATTE.HHZ. 2011-01-19T14:07:21.35 0.3 undecidable manual Sg 345 69.9744 0.875 56
IV.T0106.EHZ. 2011-01-19T14:07:21.76 0.3 undecidable manual Sg 115 73.0713 0.47 65
IV.POFI.HHZ. 2011-01-19T14:07:21.85 0.6 undecidable manual Pg 136 134.3655 0.767 34
IV.TRTR.HHE. 2011-01-19T14:07:21.44 10.0 undecidable manual Pn 0 0 0
IV.CASP.HHN. 2011-01-19T14:07:21.54 0.6 undecidable manual Pg 280 141.4473 -0.634 36
IV.CAMP.HHZ. 2011-01-19T14:07:20.17 0.3 undecidable manual Sg 95 68.1762 0.171 70
IV.FSSB.HHZ. 2011-01-19T14:07:20.57 10.0 undecidable manual Pn 0 0 0
IV.PARC.HHZ. 2011-01-19T14:07:20.10 10.0 undecidable manual Pg 0 0 0
IV.MAON.HHE. 2011-01-19T14:07:20.28 10.0 undecidable manual Pg 0 0 0
IV.GIUL.HHZ. 2011-01-19T14:07:19.20 0.3 undecidable manual Pg 154 127.1727 -0.783 52
IV.FDMO.HHZ. 2011-01-19T14:07:19.05 0.3 undecidable manual Sg 40 64.6908 -0.021 73
IV.T0104.HHZ. 2011-01-19T14:07:19.90 0.3 undecidable manual Sg 112 67.1772 0.156 71
IV.MTCE.HHZ. 2011-01-19T14:07:19.14 0.1 undecidable manual Sg 168 64.1913 0.197 94
IV.VVLD.HHZ. 2011-01-19T14:07:19.20 0.6 undecidable manual Pg 133 117.1938 0.752 36
IV.SMA1.EHZ. 2011-01-19T14:07:18.79 0.3 undecidable manual Sg 85 61.9935 0.43 67
CH.PLONS.HHE. 2011-01-19T14:07:17.34 10.0 undecidable manual Pg 0 0 0
IV.BADI.EHZ. 2011-01-19T14:07:17.09 0.6 undecidable manual Pg 345 105.6165 0.426 41
IV.PIEI.HHZ. 2011-01-19T14:07:16.87 0.3 undecidable manual Pg 358 105.117 0.295 64
IV.OFFI.HHZ. 2011-01-19T14:07:16.46 10.0 undecidable manual Pg 0 0 0
IV.CING.HHN. 2011-01-19T14:07:16.02 10.0 undecidable manual Pg 0 0 0
IV.LAV9.HHZ. 2011-01-19T14:07:16.80 10.0 undecidable manual Pg 0 0 0
IV.CESI.HHE. 2011-01-19T14:07:16.07 0.3 undecidable manual Sg 30 53.3022 0.048 74
IV.FRON.EHZ. 2011-01-19T14:07:16.23 10.0 undecidable manual Pg 0 0 0
IV.GUAR.HHZ. 2011-01-19T14:07:16.54 0.6 undecidable manual Pg 145 106.8153 -0.304 42
IV.ARVD.HHZ. 2011-01-19T14:07:16.13 0.3 undecidable manual Pg 16 105.117 -0.447 62
IV.NRCA.HHE. 2011-01-19T14:07:15.31 0.3 undecidable manual Sg 58 51.5151 -0.234 72
IV.ATPC.HHE. 2011-01-19T14:07:15.90 0.3 undecidable manual Pg 354 99.4227 0.197 66
IV.MA9.HHZ. 2011-01-19T14:07:15.00 10.0 undecidable manual Pg 0 0 0
IV.MGAB.HHZ. 2011-01-19T14:07:15.45 0.3 undecidable manual Sg 314 52.2033 -0.29 71
IV.RDP.HHZ. 2011-01-19T14:07:15.35 10.0 undecidable manual Pg 0 0 0
IV.SSFR.HHN. 2011-01-19T14:07:15.94 10.0 undecidable manual Pg 0 0 0
IV.ROM9.HHZ. 2011-01-19T14:07:15.17 10.0 undecidable manual Pg 0 0 0
IV.FAGN.HHZ. 2011-01-19T14:07:14.17 0.3 undecidable manual Pg 113 89.8434 -0.056 69
IV.CAFI.HHZ. 2011-01-19T14:07:14.93 0.3 undecidable manual Pg 329 95.9262 -0.239 66
IV.SAMA.HHZ. 2011-01-19T14:07:14.59 10.0 undecidable manual Pg 0 0 0
IV.RMP.HHZ. 2011-01-19T14:07:13.88 0.3 undecidable manual Pg 173 86.8464 0.11 69
IV.GUMA.HHN. 2011-01-19T14:07:13.03 0.3 undecidable manual Pg 49 81.0522 0.166 69
IV.ATVO.HHZ. 2011-01-19T14:07:13.92 0.3 undecidable manual Pg 351 89.0442 -0.188 67
IV.TERO.HHE. 2011-01-19T14:07:12.87 0.3 undecidable manual Pg 87 83.8494 -0.437 65
IV.CERT.HHZ. 2011-01-19T14:07:12.10 0.3 undecidable manual Pg 155 78.366 -0.353 66
IV.SNTG.HHN. 2011-01-19T14:07:12.48 0.6 undecidable manual Pg 22 79.5648 -0.162 46
IV.MCIV.HHZ. 2011-01-19T14:07:12.03 0.6 undecidable manual Pg 286 76.4679 -0.128 47
IV.LNSS.HHZ. 2011-01-19T14:07:11.47 0.3 undecidable manual Sg 87 37.8288 -0.322 72
IV.MURB.HHZ. 2011-01-19T14:07:11.76 0.3 undecidable manual Pg 357 74.8695 -0.163 70
IV.TOLF.HHZ. 2011-01-19T14:07:11.80 0.3 undecidable manual Pg 219 75.0693 -0.144 70
IV.ATTE.HHZ. 2011-01-19T14:07:11.02 0.3 undecidable manual Pg 345 69.9744 -0.144 71
IV.T0106.EHZ. 2011-01-19T14:07:11.23 0.3 undecidable manual Pg 115 73.0713 -0.404 66
IV.FDMO.HHZ. 2011-01-19T14:07:10.10 0.3 undecidable manual Pg 40 64.6908 -0.251 70
IV.T0104.HHZ. 2011-01-19T14:07:10.33 0.6 undecidable manual Pg 112 67.1772 -0.412 45
IV.MTCE.HHZ. 2011-01-19T14:07:10.17 0.3 undecidable manual Pg 168 64.1913 -0.107 72
IV.LATE.HHZ. 2011-01-19T14:07:10.04 0.1 undecidable manual Pg 273 63.1923 -0.085 96
IV.CAMP.HHZ. 2011-01-19T14:07:10.68 0.3 undecidable manual Pg 95 68.1762 -0.209 70
IV.FIAM.HHZ. 2011-01-19T14:07:10.22 10.0 undecidable manual Pg 0 0 0
IV.SMA1.EHZ. 2011-01-19T14:07:09.96 0.3 undecidable manual Pg 85 61.9935 0.02 73
IV.NRCA.HHE. 2011-01-19T14:07:08.06 0.3 undecidable manual Pg 58 51.5151 -0.257 71
IV.MGAB.HHZ. 2011-01-19T14:07:08.15 0.3 undecidable manual Pg 314 52.2033 -0.28 71
IV.CESI.HHE. 2011-01-19T14:07:08.34 0.3 undecidable manual Pg 30 53.3022 -0.252 71
IV.AGST.EHZ. 2011-01-19T14:07:06.01 10.0 undecidable manual Pg 0 0 0
IV.LNSS.HHZ. 2011-01-19T14:07:05.99 0.1 undecidable manual Pg 87 37.8288 -0.16 99
IV.CESX.HHN. 2011-01-19T14:07:01.43 0.1 undecidable manual Sg 5 2.3976 0.419 100
IV.CESX.HHN. 2011-01-19T14:07:00.32 0.3 undecidable manual Pg 5 2.3976 0.396 75
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