Earthquake with magnitude of ML 1.8 on date 16-08-2020 and time 01:56:18 (Italy) in region Tirreno Meridionale (MARE)

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

  • 15-08-2020 23:56:18 (UTC)
  • 16-08-2020 01:56:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.83, 15.42 at 192 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
71 Km N of Messina (238439 inhabitants)
79 Km W of Lamezia Terme (70714 inhabitants)
82 Km N of Reggio di Calabria (183035 inhabitants)
89 Km SW of Cosenza (67546 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 2020-08-15
23:56:18
38.83 15.43 192 2020-08-16
00:12:29
Sala Sismica INGV-Roma 82025841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-15 23:56:18 ± 0.51
Latitude 38.83 ± 0.03
Longitude 15.43 ± 0.08
Depth (km) 192 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82025841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 7390
Semi-minor axis of confidence ellipse (meter) 1908
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 109
Circular confidence region, given by single value of horizontal uncertainty (meter) 7390
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 201
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 15
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) 1.26984
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:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 82025841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-16 00:12:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LAV9.HHZ. 2020-08-15T23:58:21.22 3.0 undecidable manual Sg 19.530001 0
IV.ROSPO.HHZ. 2020-08-15T23:58:17.50 3.0 undecidable manual Sg 18.48 0
IV.LPEL.HHZ. 2020-08-15T23:57:57.59 3.0 undecidable manual Sn 0.24 0
IV.MTMR.EHZ. 2020-08-15T23:57:44.60 3.0 undecidable manual Sg 15.87 0
IV.MIDA.HHZ. 2020-08-15T23:57:44.78 3.0 undecidable manual Sn -3.13 0
IV.APEC.HHZ. 2020-08-15T23:57:41.66 3.0 negative manual Pn -1.4 0
IV.VIVA.HHZ. 2020-08-15T23:57:35.12 3.0 negative manual Pg 14.67 0
IV.RCAV.EHZ. 2020-08-15T23:57:21.60 3.0 undecidable manual Pn 1.08 0
IV.PANTE.HHZ. 2020-08-15T23:57:21.21 3.0 undecidable manual Pg 2.35 0
IV.PLLN.EHZ. 2020-08-15T23:57:12.03 3.0 undecidable manual Sn -0.94 0
IV.MIDA.HHZ. 2020-08-15T23:57:08.41 3.0 undecidable manual Pn -3.96 0
IV.CAR1.HHZ. 2020-08-15T23:57:06.89 0.6 undecidable manual S 55 0.7455 155 -0.06 48
IV.CET2.HHZ. 2020-08-15T23:57:06.79 0.3 undecidable manual S 30 0.8139 153 -0.87 55
MN.CEL.HHZ. 2020-08-15T23:57:06.55 0.3 undecidable manual S 147 0.6727 158 0.29 70
IV.MSRU.HHZ. 2020-08-15T23:57:05.76 0.6 undecidable manual S 173 0.5648 161 0.42 47
IV.JOPP.HHZ. 2020-08-15T23:57:04.67 0.6 undecidable manual S 121 0.42 166 0.33 49
IV.VENT.EHZ. 2020-08-15T23:57:04.66 3.0 undecidable manual Pn -1.94 0
IV.VBKN.HHZ. 2020-08-15T23:57:03.50 3.0 positive manual Pg 1.52 0
IV.SALB.HHZ. 2020-08-15T23:56:51.02 0.6 undecidable manual P 34 1.2698 142 0.58 38
MN.CUC.HHE. 2020-08-15T23:56:50.68 0.6 undecidable manual P 14 1.206 143 0.77 36
IV.CELI.HHZ. 2020-08-15T23:56:48.96 0.1 undecidable manual P 55 1.0198 148 0.51 82
IV.GRIS.EHE. 2020-08-15T23:56:48.64 0.1 undecidable manual P 20 0.9731 149 0.53 83
MN.TIP.HHZ. 2020-08-15T23:56:48.84 0.1 undecidable manual P 71 1.0945 146 -0.17 87
IV.CAR1.HHZ. 2020-08-15T23:56:46.50 0.1 undecidable manual P 55 0.7455 155 -0.15 95
IV.CET2.HHZ. 2020-08-15T23:56:46.54 0.1 undecidable manual P 30 0.8139 153 -0.52 86
MN.CEL.HHZ. 2020-08-15T23:56:45.82 0.1 undecidable manual P 147 0.6727 158 -0.43 91
IV.MSRU.HHZ. 2020-08-15T23:56:45.65 0.1 undecidable manual P 173 0.5648 161 -0.07 100
IV.JOPP.HHZ. 2020-08-15T23:56:44.94 0.1 positive manual P 121 0.42 166 -0.21 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.JOPP.HHE. ML:1.2 6.835268E-6 0.3072 AML other m 2020-08-15T23:57:04.68
IV.JOPP.HHN. ML:1.7 1.6677325E-5 0.192 AML other m 2020-08-15T23:57:05.06
IV.MSRU.HHN. ML:1.9 2.521075E-5 0.3584 AML other m 2020-08-15T23:57:06.14
MN.CEL.HHE. ML:1.2 5.477849E-6 0.6784 AML other m 2020-08-15T23:57:06.64
MN.CEL.HHN. ML:1.6 9.20726E-6 0.4992 AML other m 2020-08-15T23:57:06.53
MN.CEL.HNE. ML:1.6 1.1620442E-5 0.3456 AML other m 2020-08-15T23:57:06.55
IV.CAR1.HHE. ML:1.7 1.530478E-5 0.5248 AML other m 2020-08-15T23:57:06.68
IV.CAR1.HHN. ML:1.6 1.1064687E-5 0.8576 AML other m 2020-08-15T23:57:07.05
IV.CAR1.HNE. ML:2 2.9308592E-5 0.3072 AML other m 2020-08-15T23:57:06.80
IV.CAR1.HNN. ML:2.5 8.3067645E-5 0.4608 AML other m 2020-08-15T23:57:07.03
IV.CET2.HHE. ML:2 3.1332655E-5 0.512 AML other m 2020-08-15T23:57:07.46
IV.CET2.HHN. ML:2 3.19065E-5 0.4864 AML other m 2020-08-15T23:57:06.87
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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Type Description Link
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