Earthquake with magnitude of ML 1.8 on date 11-07-2020 and time 04:25:21 (Italy) in region Tirreno Meridionale (MARE)

A magnitude ML 1.8 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 11-07-2020 02:25:21 (UTC)
  • 11-07-2020 04:25:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.76, 15.51 at 221 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
63 Km N of Messina (238439 inhabitants)
74 Km N of Reggio di Calabria (183035 inhabitants)
74 Km W of Lamezia Terme (70714 inhabitants)
87 Km SW of Cosenza (67546 inhabitants)
95 Km W of Catanzaro (90612 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
Reviewed
Rev100
ML 1.8 2020-07-11
02:25:21
38.76 15.51 221 2020-07-11
02:36:26
Sala Sismica INGV-Roma 80940951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-11 02:25:21 ± 0.38
Latitude 38.76 ± 0.03
Longitude 15.51 ± 0.05
Depth (km) 221 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80940951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 4540
Semi-minor axis of confidence ellipse (meter) 2513
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 131
Circular confidence region, given by single value of horizontal uncertainty (meter) 4540
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 156
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.95328
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 80940951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-11 02:36:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PLAC.HHZ. 2020-07-11T02:26:16.40 0.3 undecidable manual S 113 0.7878 157 0.49 67
IV.MTTG.HHE. 2020-07-11T02:26:16.41 0.6 undecidable manual S 169 0.7752 158 0.62 43
IV.CET2.HHZ. 2020-07-11T02:26:16.23 0.6 undecidable manual S 24 0.8364 156 -0.14 47
IV.AIO.HHN. 2020-07-11T02:26:16.66 0.6 undecidable manual S 196 0.8229 157 0.42 45
MN.CEL.HHZ. 2020-07-11T02:26:14.20 0.3 undecidable manual S 149 0.5855 163 -0.06 76
XK.GIZZ.HHZ. 2020-07-11T02:26:14.09 0.3 undecidable manual S 68 0.581 163 -0.15 75
IV.IVUG.HHN. 2020-07-11T02:26:14.64 0.3 undecidable manual S 228 0.5531 164 0.6 68
IV.MPNC.HHE. 2020-07-11T02:26:13.87 0.3 undecidable manual S 192 0.6304 162 -0.72 63
IV.JOPP.HHZ. 2020-07-11T02:26:12.22 0.6 undecidable manual S 118 0.3301 170 -0.62 47
XK.SELL.HHZ. 2020-07-11T02:25:54.51 3.0 negative manual P 0.26 0
IV.SERS.HHZ. 2020-07-11T02:25:54.75 0.3 negative manual P 73 0.9533 153 0.77 58
IV.CET2.HHZ. 2020-07-11T02:25:53.49 0.6 undecidable manual P 24 0.8364 156 0.19 47
IV.AIO.HHN. 2020-07-11T02:25:53.64 0.1 undecidable manual P 196 0.8229 157 0.42 90
IV.PLAC.HHZ. 2020-07-11T02:25:53.40 0.6 positive manual P 113 0.7878 157 0.37 46
IV.MUCR.HHN. 2020-07-11T02:25:53.38 0.1 undecidable manual P 215 0.8777 155 -0.15 94
IV.CAR1.HHZ. 2020-07-11T02:25:52.93 0.6 negative manual P 48 0.7293 159 0.2 48
IV.IVUG.HHN. 2020-07-11T02:25:52.19 0.1 undecidable manual P 228 0.5531 164 0.24 99
IV.IVPL.HNN. 2020-07-11T02:25:52.18 0.1 undecidable manual P 227 0.5693 163 0.17 100
IV.MTTG.HHE. 2020-07-11T02:25:52.89 0.1 undecidable manual P 169 0.7752 158 -0.07 98
XK.GIZZ.HHZ. 2020-07-11T02:25:52.01 0.3 positive manual P 68 0.581 163 -0.05 77
IV.MPNC.HHE. 2020-07-11T02:25:51.57 0.1 undecidable manual P 192 0.6304 162 -0.7 85
MN.CEL.HHZ. 2020-07-11T02:25:51.59 0.1 undecidable manual P 149 0.5855 163 -0.49 93
IV.JOPP.HHZ. 2020-07-11T02:25:50.74 0.1 undecidable manual P 118 0.3301 170 -0.51 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CAR1.HHE. ML:2.1 2.305E-5 0.72 AML other m 2020-07-11T02:26:20.70
IV.CET2.HHN. ML:2.1 2.375E-5 0.76 AML other m 2020-07-11T02:26:17.46
IV.CET2.HHE. ML:1.9 1.685E-5 0.7 AML other m 2020-07-11T02:26:17.50
IV.JOPP.HHE. ML:1.8 1.2516155E-5 1.1408 AML other m 2020-07-11T02:26:13.94
IV.JOPP.HHN. ML:1.8 1.2560395E-5 3.9792 AML other m 2020-07-11T02:26:11.96
IV.PLAC.HHE. ML:1.7 1.06955805E-5 0.36 AML other m 2020-07-11T02:26:17.29
IV.PLAC.HHN. ML:1.7 9.232542E-6 0.3408 AML other m 2020-07-11T02:26:17.19
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