Earthquake with magnitude of ML 1.2 on date 21-05-2019 and time 08:10:48 (Italy) in region 3 km NE Castel Vittorio (IM)

A magnitude ML 1.2 earthquake occured in region: 3 km NE Castel Vittorio (IM), on

  • 21-05-2019 06:10:48 (UTC)
  • 21-05-2019 08:10:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.95, 7.7 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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 Vittorio IM 3 287 287
Pigna IM 3 859 1146
Bajardo IM 5 312 1458
Triora IM 7 355 1813
Molini di Triora IM 8 617 2430
Apricale IM 8 629 3059
Isolabona IM 9 679 3738
Perinaldo IM 9 870 4608
Ceriana IM 9 1250 5858
Rocchetta Nervina IM 10 298 6156
Montalto Ligure IM 12 377 6533
Badalucco IM 12 1136 7669
Dolceacqua IM 13 2074 9743
Seborga IM 13 315 10058
Carpasio IM 14 168 10226
Soldano IM 14 977 11203
Airole IM 14 407 11610
San Biagio della Cima IM 15 1329 12939
Vallebona IM 15 1310 14249
Sanremo IM 16 54807 69056
Camporosso IM 16 5632 74688
Briga Alta CN 16 39 74727
Rezzo IM 16 366 75093
Ospedaletti IM 16 3367 78460
Castellaro IM 16 1256 79716
Olivetta San Michele IM 16 211 79927
Montegrosso Pian Latte IM 16 118 80045
Taggia IM 17 14116 94161
Mendatica IM 17 185 94346
Pietrabruna IM 18 501 94847
Vallecrosia IM 18 6956 101803
Cosio d'Arroscia IM 18 221 102024
Aurigo IM 18 347 102371
Pompeiana IM 18 823 103194
Bordighera IM 19 10469 113663
Ventimiglia IM 19 24310 137973
Riva Ligure IM 19 2910 140883
Terzorio IM 19 216 141099
PrelĂ  IM 19 503 141602
Pornassio IM 20 685 142287

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km NW of Sanremo (54807 inhabitants)
51 Km S of Cuneo (56081 inhabitants)
74 Km SW of Savona (61345 inhabitants)
Recent and historical Seismicity
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 100 ML 1.2 2019-05-21
06:10:48
43.95 7.7 10 2019-05-21
06:20:29
Sala Sismica INGV-Roma 68746771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-05-21 06:10:48 ± 0.12
Latitude 43.95 ± 0.01
Longitude 7.70 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 68746771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1177
Semi-minor axis of confidence ellipse (meter) 753
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 193
Circular confidence region, given by single value of horizontal uncertainty (meter) 1180
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 20
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
Epicentral distance of station farthest from the epicenter (degree) 0.94069
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 68746771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-05-21 06:20:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2019-05-21T06:12:45.52 3.0 undecidable manual Sn 2.44 0
IV.MCRV.HHZ. 2019-05-21T06:12:29.69 3.0 undecidable manual Pn 4.94 0
IV.PTRJ.HNZ. 2019-05-21T06:12:20.56 3.0 undecidable manual Pn 5.66 0
IV.FAGN.HHZ. 2019-05-21T06:12:10.70 3.0 positive manual Pg 10.09 0
IV.LIK.EHZ.01 2019-05-21T06:12:09.57 3.0 positive manual Pn 4.24 0
IV.ZONE.HHZ. 2019-05-21T06:12:04.39 3.0 undecidable manual Sn 1.36 0
IV.ARVD.HHZ. 2019-05-21T06:11:58.82 3.0 negative manual Pg 9.35 0
IV.APEC.HHZ. 2019-05-21T06:11:42.75 3.0 undecidable manual Pn -1.44 0
IV.BRMO.HHZ. 2019-05-21T06:11:39.48 3.0 negative manual Pn -0.19 0
IV.VOBA.HNZ. 2019-05-21T06:11:36.89 3.0 negative manual Pg 4.49 0
GU.BHB.HHZ. 2019-05-21T06:11:18.80 0.3 undecidable manual S 341 0.9407 50 -0.24 62
IV.EUCT.HNZ. 2019-05-21T06:11:16.42 3.0 undecidable manual Pn -2.2 0
GU.PCP.HHZ. 2019-05-21T06:11:15.73 1.0 undecidable manual S 45 0.8472 50 -0.56 19
GU.BHB.HHZ. 2019-05-21T06:11:06.69 1.0 negative manual P 341 0.9407 50 0.57 19
GU.PCP.HHZ. 2019-05-21T06:11:05.90 0.1 undecidable manual P 45 0.8472 50 1.36 54
GU.CANO.HHZ. 2019-05-21T06:11:04.59 0.3 undecidable manual S 56 0.4649 50 -0.37 67
GU.STV.HHZ. 2019-05-21T06:11:02.40 0.6 undecidable manual S 318 0.4011 50 -0.65 41
GU.GBOS.HHZ. 2019-05-21T06:11:00.07 0.6 undecidable manual S 19 0.3103 50 -0.31 46
GU.ENR.HHZ. 2019-05-21T06:11:00.92 0.6 undecidable manual S 324 0.3435 50 -0.44 45
IV.QLNO.HHZ. 2019-05-21T06:11:00.91 3.0 positive manual P -1 0
GU.RORO.HHZ. 2019-05-21T06:10:59.65 0.3 undecidable manual S 58 0.3103 50 -0.73 61
GU.CANO.HHZ. 2019-05-21T06:10:58.39 0.1 undecidable manual P 56 0.4649 50 0.4 88
GU.STV.HHZ. 2019-05-21T06:10:57.24 0.6 undecidable manual P 318 0.4011 50 0.34 45
GU.BURY.HHE. 2019-05-21T06:10:56.45 0.1 undecidable manual S 212 0.1943 115 -0.28 96
GU.ENR.HHZ. 2019-05-21T06:10:56.27 0.1 positive manual P 324 0.3435 50 0.35 91
GU.RORO.HHZ. 2019-05-21T06:10:55.38 0.6 negative manual P 58 0.3103 50 0.03 49
GU.GBOS.HHZ. 2019-05-21T06:10:55.66 0.1 positive manual P 19 0.3103 50 0.31 93
IV.IMI.HHZ. 2019-05-21T06:10:54.41 0.6 undecidable manual S 105 0.1439 122 -0.61 44
FR.SAOF.HHZ.00 2019-05-21T06:10:53.88 0.1 undecidable manual S 290 0.1124 129 -0.15 100
GU.BURY.HHE. 2019-05-21T06:10:53.34 0.1 undecidable manual P 212 0.1943 115 0.09 99
IV.IMI.HHZ. 2019-05-21T06:10:52.37 0.1 negative manual P 105 0.1439 122 0.11 100
FR.SAOF.HHZ.00 2019-05-21T06:10:51.97 1.0 positive manual P 290 0.1124 129 0.29 24
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
FR.SAOF.HHE.00 ML:1.1 0.0001285 0.06 AML other m 2019-05-21T06:10:54.19
IV.IMI.HHE. ML:1.5 0.0002885 0.08 AML other m 2019-05-21T06:10:54.60
FR.SAOF.HHN.00 ML:1.1 0.0001505 0.06 AML other m 2019-05-21T06:10:54.66
IV.IMI.HHN. ML:1.4 0.0002545 0.4 AML other m 2019-05-21T06:10:54.64
GU.RORO.HHN. ML:1.2 5.955E-5 0.4 AML other m 2019-05-21T06:11:00.47
GU.RORO.HHE. ML:1.1 4.85E-5 0.62 AML other m 2019-05-21T06:11:00.29
GU.ENR.HHE. ML:1.3 6.895E-5 0.36 AML other m 2019-05-21T06:11:01.73
GU.ENR.HHN. ML:1.2 5.875E-5 1.22 AML other m 2019-05-21T06:11:03.07
IV.APEC.HHE. ML:3.2 9.525E-5 0.08 AML other m 2019-05-21T06:12:48.07
IV.APEC.HHN. ML:3 7.27E-5 0.08 AML other m 2019-05-21T06:12:53.06
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download