Earthquake with magnitude of ML 2.1 on date 15-05-2020 and time 16:40:32 (Italy) in region 3 km SW Castel Giorgio (TR)

A magnitude ML 2.1 earthquake occured in region: 3 km SW Castel Giorgio (TR), on

  • 15-05-2020 14:40:32 (UTC)
  • 15-05-2020 16:40:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.684, 11.957 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
Castel Giorgio TR 3 2131 2131
San Lorenzo Nuovo VT 4 2091 4222
Bolsena VT 5 3991 8213
Grotte di Castro VT 7 2683 10896
Castel Viscardo TR 9 2938 13834
Gradoli VT 9 1353 15187
Acquapendente VT 10 5506 20693
Onano VT 12 995 21688
Porano TR 12 1966 23654
Latera VT 12 836 24490
Orvieto TR 13 20630 45120
Proceno VT 13 557 45677
Bagnoregio VT 13 3650 49327
Lubriano VT 14 909 50236
Allerona TR 14 1794 52030
Capodimonte VT 16 1731 53761
Marta VT 17 3499 57260
Valentano VT 17 2868 60128
Montefiascone VT 17 13432 73560
Ficulle TR 19 1669 75229
Celleno VT 20 1355 76584
Sorano GR 20 3428 80012

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NW of Viterbo (67173 inhabitants)
58 Km W of Terni (111501 inhabitants)
59 Km SW of Perugia (166134 inhabitants)
67 Km N of Civitavecchia (52991 inhabitants)
68 Km W of Foligno (57155 inhabitants)
69 Km E of Grosseto (82087 inhabitants)
87 Km SE of Siena (53903 inhabitants)
87 Km S of Arezzo (99543 inhabitants)
98 Km NW of Roma (2864731 inhabitants)
99 Km NW of Guidonia Montecelio (88673 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
Shakemap
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 2.1 2020-05-15
14:40:32
42.6843 11.9568 11 2020-11-19
12:36:58
Bollettino Sismico Italiano INGV 82212431
Reviewed
Rev100
ML 2.0 2020-05-15
14:40:32
42.6903 11.9533 10 2020-05-15
14:54:18
Sala Sismica INGV-Roma 79160571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-15 14:40:32 ± 0.09
Latitude 42.6843 ± 0.0045
Longitude 11.9568 ± 0.0049
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 82212431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 464
Semi-minor axis of confidence ellipse (meter) 245
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 188
Circular confidence region, given by single value of horizontal uncertainty (meter) 460
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.71226
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 21
Type of magnitude ML
Reference to an origin 82212431
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-20 15:00:43

ML:2

Field Value
Value 2
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 79160571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-15 14:54:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SBPO.HNZ. 2020-05-15T14:41:13.02 3.0 undecidable manual P -0.22 0
IV.MOMA.HNZ. 2020-05-15T14:40:48.66 0.6 undecidable manual S 75 0.4658 50 0.04 47
IV.ARCI.HNZ. 2020-05-15T14:40:47.25 0.6 undecidable manual S 296 0.3912 50 0.85 37
IV.BARO.HNZ. 2020-05-15T14:40:47.80 0.6 undecidable manual S 171 0.4416 50 -0.11 46
IV.MURB.HNZ. 2020-05-15T14:40:46.70 0.3 undecidable manual P 35 0.7123 50 0.79 54
IV.TOLF.HHZ. 2020-05-15T14:40:44.22 0.6 undecidable manual P 177 0.6205 50 -0.13 44
IV.ARRO.EHZ. 2020-05-15T14:40:44.50 0.6 undecidable manual P 100 0.6043 50 0.44 42
TV.SF01.EHZ. 2020-05-15T14:40:44.51 0.6 undecidable manual S 294 0.3157 50 0.34 45
IV.ATTE.HHZ. 2020-05-15T14:40:44.15 0.3 undecidable manual P 29 0.59 50 0.33 64
TV.SF13.HHZ. 2020-05-15T14:40:43.06 0.3 undecidable manual S 299 0.2815 50 -0.1 72
TV.SF11.HHN. 2020-05-15T14:40:43.14 0.3 undecidable manual S 312 0.2743 50 0.18 71
IV.CESX.HHE. 2020-05-15T14:40:42.32 0.6 undecidable manual P 99 0.4694 50 0.56 41
TV.SF04.EHZ. 2020-05-15T14:40:42.13 0.6 undecidable manual S 305 0.2653 50 -0.54 43
TV.SF14.HHN. 2020-05-15T14:40:42.59 0.3 undecidable manual S 286 0.2608 50 0.04 73
IV.MGAB.HHZ. 2020-05-15T14:40:42.25 0.3 undecidable manual S 26 0.2554 50 -0.13 72
TV.SF03.EHE. 2020-05-15T14:40:41.40 0.3 undecidable manual S 301 0.2311 50 -0.29 70
IV.MOMA.HNZ. 2020-05-15T14:40:41.43 0.6 undecidable manual P 75 0.4658 50 -0.26 45
IV.MCIV.CHZ. 2020-05-15T14:40:41.49 0.3 undecidable manual S 295 0.2266 50 -0.04 73
IT.GNU.HGE. 2020-05-15T14:40:41.54 0.6 undecidable manual P 75 0.4658 50 -0.16 46
IV.ARCI.HNZ. 2020-05-15T14:40:40.94 0.3 undecidable manual P 296 0.3912 50 0.53 64
IV.BARO.HNZ. 2020-05-15T14:40:40.78 0.3 undecidable manual P 171 0.4416 50 -0.5 64
IV.SACS.HHZ. 2020-05-15T14:40:39.62 0.3 undecidable manual S 348 0.1682 119 -0.04 74
TV.SF01.EHZ. 2020-05-15T14:40:39.40 0.3 undecidable manual P 294 0.3157 50 0.27 69
TV.SF13.HHZ. 2020-05-15T14:40:38.42 0.3 undecidable manual P 299 0.2815 50 -0.12 71
TV.SF11.HHN. 2020-05-15T14:40:38.38 0.3 undecidable manual P 312 0.2743 50 -0.05 73
TV.SF04.EHZ. 2020-05-15T14:40:38.18 0.3 undecidable manual P 305 0.2653 50 -0.08 72
IV.LATE.HHZ. 2020-05-15T14:40:38.84 0.6 undecidable manual S 238 0.1322 125 0.34 47
TV.SF14.HHN. 2020-05-15T14:40:37.99 0.1 positive manual P 286 0.2608 50 -0.2 94
TV.SF03.EHE. 2020-05-15T14:40:37.53 0.1 undecidable manual P 301 0.2311 50 -0.16 95
IV.MCIV.CHZ. 2020-05-15T14:40:37.55 0.3 undecidable manual P 295 0.2266 50 -0.05 73
IV.MGAB.HHZ. 2020-05-15T14:40:37.70 0.1 negative manual P 26 0.2554 50 -0.39 90
IV.SACS.HHZ. 2020-05-15T14:40:36.32 0.1 positive manual P 348 0.1682 119 -0.2 96
IV.LATE.HHZ. 2020-05-15T14:40:35.83 0.1 positive manual P 238 0.1322 125 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SACS.HHN. ML:2.3 0.00149 1.06 AML other m 2020-05-15T14:40:39.83
IV.LATE.HHE. ML:2.1 0.00113 0.82 AML other m 2020-05-15T14:40:39.93
IV.SACS.HHE. ML:2.3 0.001435 1.4 AML other m 2020-05-15T14:40:39.29
IV.SACS.HNE. ML:2.3 0.00146 1.4 AML other m 2020-05-15T14:40:39.29
IV.MCIV.CHE. ML:1.8 0.0003505 0.28 AML other m 2020-05-15T14:40:42.32
IV.MCIV.CHN. ML:1.6 0.000237 0.8 AML other m 2020-05-15T14:40:42.50
IV.MGAB.HNE. ML:2.2 0.000794 0.76 AML other m 2020-05-15T14:40:43.00
TV.SF04.EHE. ML:2 0.0005655 0.18 AML other m 2020-05-15T14:40:43.20
IV.LATE.HHN. ML:2.3 0.00192 0.6 AML other m 2020-05-15T14:40:43.50
IV.MGAB.HNN. ML:2.1 0.0006395 0.6 AML other m 2020-05-15T14:40:43.38
IV.MGAB.HHN. ML:2.2 0.000817 0.74 AML other m 2020-05-15T14:40:43.38
TV.SF04.EHN. ML:2.1 0.000691 0.94 AML other m 2020-05-15T14:40:43.10
IV.MGAB.HHE. ML:2.1 0.000697 0.3 AML other m 2020-05-15T14:40:44.30
TV.SF01.EHN. ML:1.8 0.000264 0.42 AML other m 2020-05-15T14:40:44.92
TV.SF01.EHE. ML:0 0.0003375 0.56 AML other m 2020-05-15T14:40:48.45
IV.ATTE.HHN. ML:1.9 0.0001585 1.12 AML other m 2020-05-15T14:40:55.28
IV.ATTE.HHE. ML:1.9 0.000136 0.3 AML other m 2020-05-15T14:40:57.14
IV.ARRO.EHN. ML:1.7 9.605E-5 0.26 AML other m 2020-05-15T14:40:58.46
IV.ARRO.EHE. ML:1.6 7.635E-5 0.78 AML other m 2020-05-15T14:40:58.35
IV.MURB.HHE. ML:2.4 0.000363 0.78 AML other m 2020-05-15T14:41:00.58
IV.MURB.HHN. ML:2.5 0.00047 0.28 AML other m 2020-05-15T14:41:01.07
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, http://terremoti.ingv.it/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