Earthquake with magnitude of ML 1.7 on date 20-07-2019 and time 11:13:21 (Italy) in region Stretto di Messina (Reggio di Calabria, Messina)

A magnitude ML 1.7 earthquake occured in region: Stretto di Messina (Reggio di Calabria, Messina), on

  • 20-07-2019 09:13:21 (UTC)
  • 20-07-2019 11:13:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.91, 15.68 at 34 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
Roghudi RC 8 1104 1104
Melito di Porto Salvo RC 9 11355 12459
Montebello Ionico RC 11 6214 18673
Motta San Giovanni RC 11 6208 24881
San Lorenzo RC 18 2640 27521
Bagaladi RC 18 1039 28560
Condofuri RC 19 5113 33673

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km S of Reggio di Calabria (183035 inhabitants)
34 Km SE of Messina (238439 inhabitants)
56 Km NE of Acireale (52622 inhabitants)
69 Km NE of Catania (314555 inhabitants)
100 Km NE of Siracusa (122291 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 1.7 2019-07-20
09:13:21
37.91 15.69 34 2019-07-20
09:22:22
Sala Sismica INGV-Roma 70734181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-20 09:13:21 ± 0.13
Latitude 37.91 ± 0.01
Longitude 15.69 ± 0.01
Depth (km) 34 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 70734181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 819
Semi-minor axis of confidence ellipse (meter) 552
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 357
Circular confidence region, given by single value of horizontal uncertainty (meter) 820
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 169
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.39031
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 70734181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-20 09:22:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SSY.HHZ. 2019-07-20T09:13:50.10 3.0 undecidable manual S -1.32 0
IV.RAFF.HHZ. 2019-07-20T09:13:43.84 3.0 positive manual Pg 0.6 0
IV.HLNI.HHZ. 2019-07-20T09:13:37.17 0.1 negative manual P -0.63 1.26
IV.MSRU.HHZ. 2019-07-20T09:13:37.38 0.3 undecidable manual S 339 0.384 124 0.42 80
IV.PLAC.HHZ. 2019-07-20T09:13:37.53 0.6 negative manual P 0.54 0.63
MN.CEL.HHZ. 2019-07-20T09:13:37.78 0.6 undecidable manual S 25 0.3903 124 0.66 50
IV.SOI.EHZ. 2019-07-20T09:13:36.08 0.6 undecidable manual S 60 0.3354 128 0.27 56
IV.MPNC.HHZ. 2019-07-20T09:13:36.24 0.3 undecidable manual S 313 0.3552 127 -0.03 88
IV.AIO.HHE. 2019-07-20T09:13:36.61 0.3 undecidable manual S 280 0.3624 126 0.17 84
IV.SICLA.EHZ. 2019-07-20T09:13:36.04 0.3 undecidable manual S 4 0.3507 127 -0.13 86
IV.GMB.BHZ. 2019-07-20T09:13:34.06 0.3 undecidable manual S 23 0.2851 133 -0.62 76
IT.RCU.HGZ. 2019-07-20T09:13:33.21 0.3 undecidable manual S 356 0.2158 142 -0.08 89
IV.MILZ.HHZ. 2019-07-20T09:13:32.15 0.3 positive manual Pg -0.2 0.95
IV.MTTG.HHZ. 2019-07-20T09:13:31.40 0.3 undecidable manual S 7 0.098 161 -0.19 90
IV.MSRU.HHZ. 2019-07-20T09:13:30.14 0.3 undecidable manual P 339 0.384 124 -0.14 85
MN.CEL.HHZ. 2019-07-20T09:13:30.34 0.6 undecidable manual P 25 0.3903 124 -0.04 58
IV.AIO.HHE. 2019-07-20T09:13:30.16 0.3 undecidable manual P 280 0.3624 126 0.18 85
IV.GMB.BHZ. 2019-07-20T09:13:29.07 0.3 undecidable manual P 23 0.2851 133 0.1 88
IV.SICLA.EHZ. 2019-07-20T09:13:29.71 0.3 undecidable manual P 4 0.3507 127 -0.12 86
IV.SOI.EHZ. 2019-07-20T09:13:29.83 0.3 undecidable manual P 60 0.3354 128 0.21 85
IV.MPNC.HHZ. 2019-07-20T09:13:29.90 0.3 undecidable manual P 313 0.3552 127 0.01 88
IT.RCU.HGZ. 2019-07-20T09:13:27.89 0.3 undecidable manual P 356 0.2158 142 -0.27 86
IV.MTTG.HHZ. 2019-07-20T09:13:27.00 0.6 undecidable manual P 7 0.098 161 -0.18 60
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTTG.HHN. ML:2 0.000396 0.38 AML other m 2019-07-20T09:13:31.47
IV.SICLA.EHE. ML:1.6 0.00011265 0.42 AML other m 2019-07-20T09:13:36.29
IV.SOI.EHE. ML:1.7 0.000124 0.42 AML other m 2019-07-20T09:13:36.65
MN.CEL.HHE. ML:1.6 9.44E-5 0.56 AML other m 2019-07-20T09:13:38.52
MN.CEL.HHN. ML:1.5 7.645E-5 0.32 AML other m 2019-07-20T09:13:38.67
IV.MILZ.HHE. ML:2.6 0.0007185 0.4 AML other m 2019-07-20T09:13:41.94
IV.SSY.HHN. ML:2.6 0.000369 0.16 AML other m 2019-07-20T09:13:51.79
IV.RAFF.HHN. ML:1.9 4.515E-5 0.64 AML other m 2019-07-20T09:14:03.37
IV.MTTG.HHE. ML:1.7 0.0002176843 0.16 AML other m 2019-07-20T09:13:31.84
IV.GMB.BHE. ML:2.5 0.0009108069 0.16 AML other m 2019-07-20T09:13:35.65
IV.GMB.BHN. ML:2.3 0.00063829735 0.16 AML other m 2019-07-20T09:13:36.52
IV.SICLA.EHN. ML:1.5 8.613994E-5 0.2624 AML other m 2019-07-20T09:13:36.11
IV.SOI.EHN. ML:1.3 5.6435785E-5 0.4544 AML other m 2019-07-20T09:13:38.09
IV.MPNC.HHE. ML:2 0.00027955185 0.4032 AML other m 2019-07-20T09:13:38.08
IV.MPNC.HHN. ML:1.9 0.00020057245 0.3392 AML other m 2019-07-20T09:13:37.73
IV.MSRU.HHE. ML:1.5 7.175123E-5 0.2624 AML other m 2019-07-20T09:13:37.80
IV.MSRU.HHN. ML:1.5 7.291736E-5 0.3776 AML other m 2019-07-20T09:13:38.69
MN.CEL.HNE. ML:1.5 6.993798E-5 0.3008 AML other m 2019-07-20T09:13:38.81
MN.CEL.HNN. ML:1.5 8.122704E-5 0.32 AML other m 2019-07-20T09:13:38.68
IV.MILZ.HHN. ML:2.1 0.00021664655 0.4608 AML other m 2019-07-20T09:13:41.42
IV.HLNI.HHE. ML:2 0.0001055123 0.1024 AML other m 2019-07-20T09:13:49.45
IV.HLNI.HHN. ML:1.9 8.3889215E-5 0.1024 AML other m 2019-07-20T09:13:49.62
IV.PLAC.HHE. ML:1.5 3.4219025E-5 0.6016 AML other m 2019-07-20T09:13:57.99
IV.PLAC.HHN. ML:1.4 3.0616495E-5 0.7424 AML other m 2019-07-20T09:13:55.23
IV.RAFF.HHE. ML:1.9 4.091944E-5 0.3968 AML other m 2019-07-20T09:14:03.17
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