Earthquake with magnitude of ML 1.9 on date 25-05-2020 and time 06:54:39 (Italy) in region 3 km SW Castel Giorgio (TR)

A magnitude ML 1.9 earthquake occured in region: 3 km SW Castel Giorgio (TR), on

  • 25-05-2020 04:54:39 (UTC)
  • 25-05-2020 06:54:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.69, 11.95 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 11 995 21688
Latera VT 12 836 22524
Porano TR 12 1966 24490
Proceno VT 13 557 25047
Orvieto TR 13 20630 45677
Bagnoregio VT 14 3650 49327
Lubriano VT 14 909 50236
Allerona TR 14 1794 52030
Capodimonte VT 16 1731 53761
Valentano VT 17 2868 56629
Marta VT 17 3499 60128
Montefiascone VT 18 13432 73560
Ficulle TR 19 1669 75229
Sorano GR 20 3428 78657
Celleno VT 20 1355 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 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 72 hours (3 days) preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. 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 in the 90 days preceding the time of the current earthquake occurrence, 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
Bulletin
Rev1000
ML 1.9 2020-05-25
04:54:39
42.69 11.95 10 2020-11-19
12:36:51
Bollettino Sismico Italiano INGV 80828141
Reviewed
Rev100
ML 2.0 2020-05-25
04:54:39
42.69 11.95 10 2020-05-25
05:12:07
Sala Sismica INGV-Roma 79540931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-25 04:54:39 ± 0.1
Latitude 42.69 ± 0.01
Longitude 11.95 ± 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 80828141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 561
Semi-minor axis of confidence ellipse (meter) 252
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 171
Circular confidence region, given by single value of horizontal uncertainty (meter) 560
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 49
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.98386
Number of stations at which the event was observed 35
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:2

Field Value
Value 2
Uncertainty 0.3
Num. used stations 54
Type of magnitude ML
Reference to an origin 79540931
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-25 05:12:07

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 49
Type of magnitude ML
Reference to an origin 80828141
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-09-14 01:00:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SALB.HHZ. 2020-05-25T04:56:36.14 3.0 undecidable manual Sn -1.01 0
IV.LINA.HHZ. 2020-05-25T04:56:33.01 3.0 undecidable manual Pg 16.15 0
GU.ROTM.HHZ. 2020-05-25T04:56:18.25 3.0 undecidable manual Sg 15.95 0
IV.PAOL.HHZ. 2020-05-25T04:56:01.19 3.0 undecidable manual Sg 7.59 0
GU.RNCA.HHZ. 2020-05-25T04:55:59.13 3.0 undecidable manual Sg 10.77 0
IV.MSRU.HHZ. 2020-05-25T04:55:57.34 3.0 negative manual Pn 1.8 0
CR.ZAG.BHZ. 2020-05-25T04:55:48.46 3.0 positive manual Pn 6.16 0
GU.GENL.EHZ. 2020-05-25T04:55:45.12 3.0 undecidable manual Sn -1.96 0
IV.PTRJ.HNZ. 2020-05-25T04:55:44.10 3.0 undecidable manual Sn -4.16 0
IV.ROSPO.HHZ. 2020-05-25T04:55:43.44 3.0 undecidable manual Sn -3.27 0
IV.PZUN.HHZ. 2020-05-25T04:55:36.12 3.0 negative manual Pn 2.41 0
IV.POFI.HHZ. 2020-05-25T04:55:30.50 3.0 undecidable manual Sn -0.49 0
IV.PTRJ.HNZ. 2020-05-25T04:55:28.92 3.0 undecidable manual Pg 11.74 0
IV.CPOZ.HHZ. 2020-05-25T04:55:17.60 3.0 positive manual Pn -1.07 0
IV.PARC.HHZ. 2020-05-25T04:54:58.52 0.3 undecidable manual P 12 0.9839 50 0.34 59
IV.FDMO.HHZ. 2020-05-25T04:54:57.44 0.3 undecidable manual P 67 0.9011 50 0.68 54
IV.CASP.HHE. 2020-05-25T04:54:56.08 0.3 undecidable manual P 278 0.8058 50 0.95 49
IV.MOMA.HHZ. 2020-05-25T04:54:56.81 0.6 undecidable manual S 75 0.4676 50 0.51 42
IV.BARO.EHZ. 2020-05-25T04:54:55.10 0.6 undecidable manual S 171 0.4443 50 -0.5 42
IV.ATFO.HHZ. 2020-05-25T04:54:55.87 0.3 undecidable manual P 33 0.8166 50 0.56 58
IV.ATVO.HHZ. 2020-05-25T04:54:54.59 0.1 negative manual P 25 0.7698 50 0.07 87
IV.ARCI.HHZ. 2020-05-25T04:54:54.46 0.6 undecidable manual S 295 0.3876 50 0.52 43
IV.CESI.HHZ. 2020-05-25T04:54:54.55 0.3 undecidable manual P 65 0.7662 50 0.1 65
IV.MURB.HHZ. 2020-05-25T04:54:53.74 0.6 undecidable manual P 36 0.7114 50 0.22 43
IV.ATLO.EHE. 2020-05-25T04:54:53.45 0.3 undecidable manual P 28 0.7105 50 -0.05 66
TV.SF01.EHZ. 2020-05-25T04:54:51.76 0.6 undecidable manual S 294 0.313 50 0.04 48
IV.ATTE.HHZ. 2020-05-25T04:54:51.55 0.1 negative manual P 30 0.5891 50 0.12 89
TV.SF14.HHE. 2020-05-25T04:54:50.07 0.3 undecidable manual S 286 0.2581 50 -0.03 73
TV.SF11.HHE. 2020-05-25T04:54:50.17 0.6 undecidable manual S 312 0.2716 50 -0.33 46
TV.SF13.HHE. 2020-05-25T04:54:50.60 0.6 undecidable manual S 298 0.2788 50 -0.1 48
TV.SF03.EHZ. 2020-05-25T04:54:49.00 0.3 undecidable manual S 301 0.2284 50 -0.22 71
TV.SF04.EHZ. 2020-05-25T04:54:49.87 0.6 undecidable manual S 305 0.2617 50 -0.34 46
IV.MGAB.HHZ. 2020-05-25T04:54:49.56 0.3 undecidable manual S 27 0.2545 50 -0.43 67
IV.MCIV.CHZ. 2020-05-25T04:54:49.47 0.6 undecidable manual S 295 0.223 50 0.4 45
IV.MOMA.HHZ. 2020-05-25T04:54:49.20 0.3 undecidable manual P 75 0.4676 50 -0.14 68
IV.BARO.EHZ. 2020-05-25T04:54:48.44 0.3 undecidable manual P 171 0.4443 50 -0.5 64
IV.ARCI.HHZ. 2020-05-25T04:54:48.52 0.3 undecidable manual P 295 0.3876 50 0.54 64
IV.SACS.HHZ. 2020-05-25T04:54:47.13 0.3 undecidable manual S 349 0.1655 119 -0.05 74
TV.SF01.EHZ. 2020-05-25T04:54:47.04 0.3 undecidable manual P 294 0.313 50 0.34 68
TV.SF13.HHE. 2020-05-25T04:54:46.03 0.1 positive manual P 298 0.2788 50 -0.08 96
IV.LATE.HHZ. 2020-05-25T04:54:46.20 0.3 undecidable manual S 237 0.1313 125 0.14 73
TV.SF03.EHZ. 2020-05-25T04:54:45.14 0.1 undecidable manual P 301 0.2284 50 -0.12 96
TV.SF11.HHE. 2020-05-25T04:54:45.97 0.3 undecidable manual P 312 0.2716 50 -0.02 73
TV.SF04.EHZ. 2020-05-25T04:54:45.66 0.1 undecidable manual P 305 0.2617 50 -0.17 95
TV.SF14.HHE. 2020-05-25T04:54:45.62 0.1 undecidable manual P 286 0.2581 50 -0.15 95
IV.MGAB.HHZ. 2020-05-25T04:54:45.00 0.1 positive manual P 27 0.2545 50 -0.7 82
IV.MCIV.CHZ. 2020-05-25T04:54:44.89 0.6 undecidable manual P 295 0.223 50 -0.28 47
IV.SACS.HHZ. 2020-05-25T04:54:43.81 0.1 positive manual P 349 0.1655 119 -0.26 94
IV.LATE.HHZ. 2020-05-25T04:54:43.42 0.1 positive manual P 237 0.1313 125 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LATE.HHN. ML:2.2 0.0016580605 0.1792 AML other m 2020-05-25T04:54:49.13
IV.LATE.HHE. ML:2.1 0.0012129835 0.32 AML other m 2020-05-25T04:54:47.50
IV.SACS.HHE. ML:2.4 0.002070675 0.24 AML other m 2020-05-25T04:54:47.48
IV.SACS.HNN. ML:2.1 0.0011175895 0.2592 AML other m 2020-05-25T04:54:47.88
IV.SACS.HHN. ML:2.1 0.001139612 0.2592 AML other m 2020-05-25T04:54:47.88
IV.SACS.HNE. ML:2.4 0.002085 0.24 AML other m 2020-05-25T04:54:47.48
IV.MCIV.CHN. ML:1.7 0.00028949785 0.1024 AML other m 2020-05-25T04:54:50.38
IV.MGAB.HHN. ML:2 0.00058295455 0.1408 AML other m 2020-05-25T04:54:51.65
IV.MGAB.HHE. ML:2 0.00047722525 0.2592 AML other m 2020-05-25T04:54:50.52
IV.MGAB.HNE. ML:2 0.0005042927 0.2624 AML other m 2020-05-25T04:54:50.52
IV.MGAB.HNN. ML:2 0.00051670915 0.16 AML other m 2020-05-25T04:54:51.72
TV.SF04.EHE. ML:1.9 0.00041371015 0.24 AML other m 2020-05-25T04:54:53.00
TV.SF04.EHN. ML:2.1 0.00065008215 0.3008 AML other m 2020-05-25T04:54:52.36
TV.SF01.EHE. ML:1.8 0.00024716035 0.2784 AML other m 2020-05-25T04:54:53.16
TV.SF01.EHN. ML:1.9 0.0002936429 0.2208 AML other m 2020-05-25T04:54:54.51
IV.BARO.EHE. ML:1.7 0.00014537235 0.4 AML other m 2020-05-25T04:54:57.33
IV.BARO.HNE. ML:1.8 0.00016962892 0.4192 AML other m 2020-05-25T04:54:57.33
IV.BARO.HNN. ML:1.9 0.0001986368 0.4608 AML other m 2020-05-25T04:54:57.19
IV.BARO.EHN. ML:1.8 0.00017142205 0.4224 AML other m 2020-05-25T04:54:57.40
IV.ARCI.HHN. ML:1.5 9.689114E-5 0.16 AML other m 2020-05-25T04:54:56.43
IV.ARCI.HHE. ML:1.5 9.36755E-5 0.1984 AML other m 2020-05-25T04:54:56.53
IV.MOMA.HNN. ML:2 0.0002388878 0.4576 AML other m 2020-05-25T04:54:59.89
IV.MOMA.HNE. ML:1.9 0.00018104485 0.2784 AML other m 2020-05-25T04:55:00.98
IV.MOMA.HHE. ML:1.8 0.00016033365 0.2592 AML other m 2020-05-25T04:54:57.43
IV.MOMA.HHN. ML:1.8 0.00017300685 0.24 AML other m 2020-05-25T04:54:58.29
IV.ASSB.HHN. ML:1.8 0.000101210575 0.2784 AML other m 2020-05-25T04:55:06.08
IV.ASSB.HHE. ML:1.9 0.0001355697 0.4576 AML other m 2020-05-25T04:55:04.63
IV.ATTE.HHE. ML:1.8 0.00011467158 0.56 AML other m 2020-05-25T04:55:06.87
IV.ATTE.HHN. ML:1.9 0.00014371454 0.2816 AML other m 2020-05-25T04:55:04.78
IV.ATCC.EHN. ML:2.1 0.0001631441 0.5216 AML other m 2020-05-25T04:55:07.80
IV.ATCC.EHE. ML:2.1 0.00017019275 0.1376 AML other m 2020-05-25T04:54:54.95
IV.MURB.HNE. ML:2.6 0.0005296305 0.3584 AML other m 2020-05-25T04:55:09.43
IV.MURB.HHN. ML:2.7 0.00067727295 0.32 AML other m 2020-05-25T04:55:10.62
IV.MURB.HNN. ML:2.7 0.00068442685 0.3616 AML other m 2020-05-25T04:55:10.64
IV.MURB.HHE. ML:2.6 0.00062112385 0.2592 AML other m 2020-05-25T04:55:07.46
IV.CESI.HHE. ML:1.8 8.7603455E-5 0.2976 AML other m 2020-05-25T04:55:09.99
IV.CESI.HHN. ML:1.8 7.6583845E-5 0.3008 AML other m 2020-05-25T04:55:10.10
IV.ATVO.HHN. ML:1.9 8.979532E-5 0.4992 AML other m 2020-05-25T04:55:12.51
IV.ATVO.HHE. ML:2 0.0001257839 0.3808 AML other m 2020-05-25T04:55:08.34
IV.SNTG.HHN. ML:1.7 4.9070605E-5 0.5216 AML other m 2020-05-25T04:55:13.33
IV.SNTG.HHE. ML:1.5 2.8662485E-5 0.5184 AML other m 2020-05-25T04:55:12.65
IV.ATFO.HHE. ML:2 0.0001054452 0.5184 AML other m 2020-05-25T04:55:10.71
IV.ATFO.HHN. ML:2.1 0.00014460045 0.4032 AML other m 2020-05-25T04:55:10.17
IV.SSFR.HHN. ML:1.9 6.6907675E-5 0.2208 AML other m 2020-05-25T04:55:14.98
IV.SSFR.HHE. ML:1.9 7.2757855E-5 0.24 AML other m 2020-05-25T04:55:15.06
IV.FDMO.HHN. ML:1.7 4.3108255E-5 0.5024 AML other m 2020-05-25T04:55:12.47
IV.FDMO.HHE. ML:1.8 5.68919E-5 0.32 AML other m 2020-05-25T04:55:13.59
IV.PARC.HHE. ML:1.7 3.9152085E-5 0.4224 AML other m 2020-05-25T04:55:16.26
IV.PARC.HHN. ML:1.7 3.981847E-5 0.3808 AML other m 2020-05-25T04:55:21.17
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 miniseed + resp format Download