Earthquake with magnitude of ML 1.5 on date 11-07-2021 and time 05:09:15 (Italy) in region Stretto di Messina (Reggio di Calabria, Messina)

A magnitude ML 1.5 earthquake occured in region: Stretto di Messina (Reggio di Calabria, Messina), on

  • 11-07-2021 03:09:15 (UTC)
  • 11-07-2021 05:09:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.366, 15.728 at 15 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
Palmi RC 11 18930 18930
Bagnara Calabra RC 11 10255 29185
Scilla RC 12 4964 34149
Seminara RC 13 2811 36960
MelicuccĂ  RC 15 930 37890
Sant'Eufemia d'Aspromonte RC 16 4120 42010
Gioia Tauro RC 17 19864 61874
San Procopio RC 17 534 62408
San Roberto RC 17 1750 64158
Sinopoli RC 17 2089 66247
Fiumara RC 17 1018 67265
Campo Calabro RC 18 4536 71801
Villa San Giovanni RC 18 13784 85585

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NE of Messina (238439 inhabitants)
29 Km N of Reggio di Calabria (183035 inhabitants)
85 Km SW of Lamezia Terme (70714 inhabitants)
96 Km SW of Catanzaro (90612 inhabitants)
97 Km NE of Acireale (52622 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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 1.5 2021-07-11
03:09:15
38.3658 15.7282 15 2021-07-11
03:29:33
Sala Sismica INGV-Roma 92599831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-11 03:09:15 ± 0.1
Latitude 38.3658 ± 0.0054
Longitude 15.7282 ± 0.0057
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 92599831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 586
Semi-minor axis of confidence ellipse (meter) 224
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 332
Circular confidence region, given by single value of horizontal uncertainty (meter) 590
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 114
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
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) 0.10972
Epicentral distance of station farthest from the epicenter (degree) 0.60165
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 92599831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-11 03:29:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.NOV.HHE. 2021-07-11T03:09:35.48 0.6 undecidable manual S 234 0.5747 95 0.24 45
IV.AIO.HHE. 2021-07-11T03:09:34.54 0.6 undecidable manual S 225 0.554 95 -0.1 46
IV.SOI.EHZ. 2021-07-11T03:09:29.30 0.6 undecidable manual S 139 0.3885 98 -0.47 44
IV.MILZ.HHZ. 2021-07-11T03:09:29.83 0.6 undecidable manual S 257 0.4011 97 -0.29 45
IV.MPNC.HHZ. 2021-07-11T03:09:28.86 0.6 undecidable manual S 233 0.3669 98 -0.28 46
IV.IVGP.HHE. 2021-07-11T03:09:27.80 1.0 undecidable manual P 273 0.6016 94 0.34 22
IV.NOV.HHE. 2021-07-11T03:09:27.19 0.6 undecidable manual P 234 0.5747 95 0.2 45
IV.IVUG.HHE. 2021-07-11T03:09:27.14 0.1 undecidable manual P 273 0.5819 94 0.01 94
IV.PLAC.HHE. 2021-07-11T03:09:27.77 0.6 undecidable manual P 81 0.5621 95 0.98 34
IV.IVPL.HHE. 2021-07-11T03:09:27.10 0.3 undecidable manual P 271 0.5864 94 -0.09 69
IV.AIO.HHE. 2021-07-11T03:09:27.60 0.6 undecidable manual P 225 0.554 95 0.95 35
IV.JOPP.HHZ. 2021-07-11T03:09:25.91 0.6 undecidable manual S 27 0.2707 103 -0.41 46
IV.MSRU.HHZ. 2021-07-11T03:09:24.30 0.6 undecidable manual S 239 0.2005 110 -0.02 50
IV.MILZ.HHZ. 2021-07-11T03:09:23.83 0.1 undecidable manual P 257 0.4011 97 -0.21 93
MN.CEL.HHZ. 2021-07-11T03:09:23.30 0.6 undecidable manual S 129 0.1673 116 -0.13 50
IV.MPNC.HHZ. 2021-07-11T03:09:23.15 1.0 positive manual P 233 0.3669 98 -0.32 23
IV.SOI.EHZ. 2021-07-11T03:09:23.54 0.1 positive manual P 139 0.3885 98 -0.29 92
IV.SICLA.EHZ. 2021-07-11T03:09:22.02 0.6 undecidable manual S 186 0.1097 132 0 51
IV.JOPP.HHZ. 2021-07-11T03:09:21.89 0.1 undecidable manual P 27 0.2707 103 0.05 99
IV.MSRU.HHZ. 2021-07-11T03:09:20.79 0.1 negative manual P 239 0.2005 110 0.1 100
MN.CEL.HHZ. 2021-07-11T03:09:20.26 0.1 positive manual P 129 0.1673 116 0.09 100
IV.SICLA.EHZ. 2021-07-11T03:09:19.51 0.1 positive manual P 186 0.1097 132 0.15 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SICLA.EHE. ML:1.5 0.000259 1.4 AML other m 2021-07-11T03:09:22.18
IV.SICLA.EHN. ML:1.7 0.000428 1.08 AML other m 2021-07-11T03:09:22.27
MN.CEL.HHE. ML:1.1 8.735E-5 0.54 AML other m 2021-07-11T03:09:23.54
MN.CEL.HHN. ML:1.2 0.0001155 1.26 AML other m 2021-07-11T03:09:24.06
IV.MSRU.HHN. ML:1.6 0.000232 1.2 AML other m 2021-07-11T03:09:25.81
IV.MSRU.HHE. ML:1.8 0.000353 0.42 AML other m 2021-07-11T03:09:25.58
IV.MPNC.HHE. ML:1.8 0.000181 0.48 AML other m 2021-07-11T03:09:30.21
IV.SOI.EHE. ML:1.2 4.675E-5 0.36 AML other m 2021-07-11T03:09:30.80
IV.MPNC.HHN. ML:1.7 0.000173 0.96 AML other m 2021-07-11T03:09:31.28
IV.SOI.EHN. ML:1.2 4.61E-5 1.04 AML other m 2021-07-11T03:09:33.34
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download