Earthquake with magnitude of ML 1.1 on date 07-09-2020 and time 23:42:21 (Italy) in region Stretto di Messina (Reggio di Calabria, Messina)

A magnitude ML 1.1 earthquake occured in region: Stretto di Messina (Reggio di Calabria, Messina), on

  • 07-09-2020 21:42:21 (UTC)
  • 07-09-2020 23:42:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8, 15.35 at 11 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
Giardini-Naxos ME 8 9415 9415
Taormina ME 8 10960 20375
Castelmola ME 9 1088 21463
Letojanni ME 10 2861 24324
Calatabiano CT 11 5308 29632
Gallodoro ME 12 367 29999
Fiumefreddo di Sicilia CT 13 9623 39622
Forza d'Agrò ME 13 911 40533
Sant'Alessio Siculo ME 13 1554 42087
Gaggi ME 13 3184 45271
Mongiuffi Melia ME 13 600 45871
Mascali CT 15 14282 60153
Graniti ME 15 1492 61645
Riposto CT 15 14838 76483
Piedimonte Etneo CT 15 3963 80446
Roccafiorita ME 16 197 80643
Santa Teresa di Riva ME 16 9377 90020
Giarre CT 17 27659 117679
Limina ME 17 836 118515
Savoca ME 17 1732 120247
Casalvecchio Siculo ME 18 842 121089
Furci Siculo ME 18 3382 124471
Linguaglossa CT 19 5403 129874
Motta Camastra ME 19 845 130719
Sant'Alfio CT 19 1582 132301
Roccalumera ME 20 4141 136442

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NE of Acireale (52622 inhabitants)
41 Km NE of Catania (314555 inhabitants)
43 Km SW of Reggio di Calabria (183035 inhabitants)
47 Km SW of Messina (238439 inhabitants)
83 Km N 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
Reviewed
Rev100
ML 1.1 2020-09-07
21:42:21
37.8 15.35 11 2020-09-07
21:55:24
Sala Sismica INGV-Roma 82718181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-07 21:42:21 ± 0.07
Latitude 37.80 ± 0.00
Longitude 15.35 ± 0.01
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82718181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 760
Semi-minor axis of confidence ellipse (meter) 390
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 277
Circular confidence region, given by single value of horizontal uncertainty (meter) 760
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 143
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.68079
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0
Num. used stations 2
Type of magnitude ML
Reference to an origin 82718181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-07 21:55:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HLNI.HHZ. 2020-09-07T21:42:41.67 0.6 undecidable manual S 220 0.5918 50 0.02 46
IV.HAGA.HHE. 2020-09-07T21:42:40.48 0.6 undecidable manual S 197 0.5396 50 0.37 43
IV.SSY.HHZ. 2020-09-07T21:42:34.61 0.1 undecidable manual P 199 0.6808 50 -0.07 90
IV.MPNC.HHZ. 2020-09-07T21:42:34.40 0.6 undecidable manual S 360 0.3444 50 0.08 48
MN.CEL.HHE. 2020-09-07T21:42:33.69 0.6 undecidable manual P 43 0.625 50 -0.04 46
IV.HLNI.HHZ. 2020-09-07T21:42:33.01 0.3 undecidable manual P 220 0.5918 50 -0.15 67
IV.HAGA.HHE. 2020-09-07T21:42:32.25 0.1 undecidable manual P 197 0.5396 50 -0.01 93
IV.NOV.HHZ. 2020-09-07T21:42:32.69 0.6 undecidable manual S 323 0.2833 50 0.19 47
IV.AGST.EHZ. 2020-09-07T21:42:31.54 3.0 undecidable manual S 0
IV.MILZ.HHE. 2020-09-07T21:42:30.65 0.6 undecidable manual P 348 0.4784 50 -0.57 41
IV.AIO.HHZ. 2020-09-07T21:42:30.28 0.6 undecidable manual S 331 0.1943 50 0.43 46
IV.MTTG.HHZ. 2020-09-07T21:42:29.04 0.1 undecidable manual P 54 0.339 50 0.2 93
IV.MPNC.HHZ. 2020-09-07T21:42:28.62 0.3 undecidable manual P 360 0.3444 50 -0.3 69
IV.NOV.HHZ. 2020-09-07T21:42:27.87 0.1 undecidable manual P 323 0.2833 50 0 98
IV.AGST.EHZ. 2020-09-07T21:42:27.93 3.0 negative manual P 3 0
IV.AIO.HHZ. 2020-09-07T21:42:26.35 0.1 negative manual P 331 0.1943 50 0.01 100
IV.ECTS.HHE. 2020-09-07T21:42:26.25 0.6 undecidable manual P 294 0.1996 50 -0.2 48
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.AIO.HHN. ML:1 7.42E-5 0.62 AML other m 2020-09-07T21:42:32.63
IV.AIO.HHE. ML:1.1 8.185E-5 0.26 AML other m 2020-09-07T21:42:32.82
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