Earthquake with magnitude of ML 1.5 on date 27-07-2021 and time 10:28:16 (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

  • 27-07-2021 08:28:16 (UTC)
  • 27-07-2021 10:28:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.265, 15.75 at 17 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
Scilla RC 3 4964 4964
Bagnara Calabra RC 5 10255 15219
San Roberto RC 6 1750 16969
Fiumara RC 8 1018 17987
Sant'Eufemia d'Aspromonte RC 9 4120 22107
Calanna RC 9 934 23041
Campo Calabro RC 10 4536 27577
Laganadi RC 10 413 27990
Sant'Alessio in Aspromonte RC 10 343 28333
Villa San Giovanni RC 11 13784 42117
Sinopoli RC 11 2089 44206
Santo Stefano in Aspromonte RC 11 1263 45469
MelicuccĂ  RC 12 930 46399
San Procopio RC 12 534 46933
Seminara RC 13 2811 49744
Palmi RC 14 18930 68674
Delianuova RC 15 3352 72026
Cosoleto RC 16 859 72885
Scido RC 16 931 73816
Messina ME 19 238439 312255
Santa Cristina d'Aspromonte RC 19 929 313184
Reggio di Calabria RC 20 183035 496219
Cardeto RC 20 1641 497860

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km E of Messina (238439 inhabitants)
20 Km NE of Reggio di Calabria (183035 inhabitants)
89 Km NE of Acireale (52622 inhabitants)
93 Km SW of Lamezia Terme (70714 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 2021-07-27
08:28:16
38.2647 15.7497 17 2021-07-27
08:55:34
Sala Sismica INGV-Roma 93263371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-27 08:28:16 ± 0.23
Latitude 38.2647 ± 0.0135
Longitude 15.7497 ± 0.0126
Depth (km) 17 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 93263371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1332
Semi-minor axis of confidence ellipse (meter) 866
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 152
Circular confidence region, given by single value of horizontal uncertainty (meter) 1330
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 112
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.5369
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0
Num. used stations 2
Type of magnitude ML
Reference to an origin 93263371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-27 08:55:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
AC.KBN.HHZ. 2021-07-27T08:29:54.26 3.0 undecidable manual Sg 7.5 0
IV.RMP.HHZ. 2021-07-27T08:29:53.66 3.0 undecidable manual Sn -1.77 0
IV.COR1.EHZ. 2021-07-27T08:29:47.64 3.0 negative manual Pg 21.84 0
IV.MURB.HNZ. 2021-07-27T08:29:46.02 3.0 undecidable manual Pg 22.02 0
IV.FIU.EHZ. 2021-07-27T08:29:43.22 3.0 negative manual Pn -2.19 0
IV.MTGR.HHZ. 2021-07-27T08:29:41.46 3.0 undecidable manual Sg 15.33 0
IV.ZCCA.HHZ. 2021-07-27T08:29:41.94 3.0 undecidable manual Pn -3.23 0
IV.FOSV.EHZ. 2021-07-27T08:29:41.70 3.0 positive manual Pg 18.65 0
IV.IOCA.HHZ. 2021-07-27T08:29:33.52 3.0 undecidable manual Sg 12.12 0
IV.CRTC.HHZ. 2021-07-27T08:29:30.96 3.0 undecidable manual Pn 2.96 0
IV.OFFI.HHZ. 2021-07-27T08:29:24.70 3.0 negative manual Pg 10.58 0
IV.SCIAC.HHZ. 2021-07-27T08:29:23.86 3.0 undecidable manual Sn 0.61 0
IX.SSB3.HHZ.02 2021-07-27T08:29:15.97 3.0 undecidable manual Sn 1.48 0
IV.LPEL.HHZ. 2021-07-27T08:29:01.34 3.0 undecidable manual Pn 0.36 0
AC.VLO.HHZ. 2021-07-27T08:28:52.21 3.0 undecidable manual Pg 2.35 0
IV.AIO.HHE. 2021-07-27T08:28:34.00 0.3 undecidable manual S 234 0.5009 98 0.55 64
IV.NOV.HHE. 2021-07-27T08:28:33.95 1.0 undecidable manual S 244 0.5369 97 -0.55 22
IV.MPNC.HHZ. 2021-07-27T08:28:28.23 0.6 undecidable manual S 249 0.3336 103 -0.32 48
IV.AIO.HHE. 2021-07-27T08:28:26.33 0.1 undecidable manual P 234 0.5009 98 0.24 94
IV.NOV.HHE. 2021-07-27T08:28:26.23 0.1 undecidable manual P 244 0.5369 97 -0.47 89
IV.MSRU.HHZ. 2021-07-27T08:28:24.48 0.6 undecidable manual S 270 0.1898 118 -0.06 52
IV.MPNC.HHZ. 2021-07-27T08:28:23.36 0.1 undecidable manual P 249 0.3336 103 0.09 100
IV.JOPP.HHE. 2021-07-27T08:28:23.35 0.1 undecidable manual P 17 0.3579 102 -0.33 94
IV.SOI.EHZ. 2021-07-27T08:28:23.07 0.1 undecidable manual P 129 0.3067 105 0.25 98
IV.MTTG.HHZ. 2021-07-27T08:28:21.72 0.1 undecidable manual P 189 0.2644 108 -0.41 95
IV.SICLA.EHZ. 2021-07-27T08:28:21.12 0.6 undecidable manual S 253 0.0288 167 -0.39 50
IV.MSRU.HHZ. 2021-07-27T08:28:21.35 0.1 undecidable manual P 270 0.1898 118 0.4 97
IV.SICLA.EHZ. 2021-07-27T08:28:19.66 0.3 negative manual P 253 0.0288 167 0.46 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SICLA.EHE. ML:1.5 0.000309 0.32 AML other m 2021-07-27T08:28:21.67
IV.SICLA.EHN. ML:1.5 0.0003295 0.4 AML other m 2021-07-27T08:28:21.47
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