Earthquake with magnitude of ML 1.2 on date 26-09-2021 and time 10:57:00 (Italy) in region Costa Calabra sud orientale (Reggio di Calabria)

A magnitude ML 1.2 earthquake occured in region: Costa Calabra sud orientale (Reggio di Calabria), on

  • 26-09-2021 08:57:00 (UTC)
  • 26-09-2021 10:57:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.411, 16.596 at 23 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
Monasterace RC 6 3454 3454
Riace RC 10 2238 5692
Camini RC 10 801 6493
Stignano RC 11 1335 7828
Placanica RC 12 1200 9028
Guardavalle CZ 13 4560 13588
Stilo RC 13 2622 16210
Pazzano RC 15 568 16778
Bivongi RC 15 1398 18176
Santa Caterina dello Ionio CZ 15 2175 20351
Caulonia RC 16 7110 27461
Badolato CZ 19 3085 30546
Roccella Ionica RC 19 6557 37103

Municipalities with at least 50000 inhabitants

An earthquake occurred to
55 Km S of Catanzaro (90612 inhabitants)
67 Km SE of Lamezia Terme (70714 inhabitants)
88 Km SW of Crotone (62178 inhabitants)
90 Km E of Reggio di Calabria (183035 inhabitants)
94 Km E of Messina (238439 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 1.2 2021-09-26
08:57:00
38.4113 16.5962 23 2021-09-26
09:12:09
Sala Sismica INGV-Roma 95895691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-26 08:57:00 ± 0.33
Latitude 38.4113 ± 0.0126
Longitude 16.5962 ± 0.0230
Depth (km) 23 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95895691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1957
Semi-minor axis of confidence ellipse (meter) 1005
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 301
Circular confidence region, given by single value of horizontal uncertainty (meter) 1960
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 230
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.01084
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 95895691
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-26 09:12:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
MN.PDG.HHZ. 2021-09-26T08:58:55.77 3.0 undecidable manual Sn -1.45 0
OX.MPRI.HHZ. 2021-09-26T08:58:54.90 3.0 positive manual Pn -2.86 0
AC.KBN.HHZ. 2021-09-26T08:58:48.19 3.0 undecidable manual Sg 4.71 0
IV.PAOL.HHZ. 2021-09-26T08:58:38.96 3.0 undecidable manual Sg 16.860001 0
IV.CPGN.EHZ. 2021-09-26T08:58:32.09 3.0 undecidable manual Pn 1.52 0
MN.CLTB.HHZ. 2021-09-26T08:58:17.98 3.0 undecidable manual Sn 0.35 0
IV.VIVA.HHZ. 2021-09-26T08:58:07.73 3.0 undecidable manual Pn 2.26 0
IV.PAOL.HHZ. 2021-09-26T08:57:54.94 3.0 undecidable manual Pg 8.71 0
OT.OT17.EHZ. 2021-09-26T08:57:51.85 3.0 undecidable manual Pn 0.84 0
IV.NOCI.HHZ. 2021-09-26T08:57:38.64 3.0 undecidable manual Pg 1.49 0
IV.SERS.HHZ. 2021-09-26T08:57:22.40 0.6 undecidable manual S 100
IV.JOPP.HHZ. 2021-09-26T08:57:20.49 0.6 undecidable manual S 290 0.5891 103 -0.21 45
IV.SELL.HNZ. 2021-09-26T08:57:20.62 0.6 undecidable manual S 2 0.572 103 0.41 43
IV.SOI.EHE. 2021-09-26T08:57:19.41 0.3 undecidable manual S 232 0.5432 104 0.02 69
IV.MPNC.HHZ. 2021-09-26T08:57:18.94 0.1 undecidable manual P 255 1.0108 97 -0.32 79
IV.FERC.HHZ.00 2021-09-26T08:57:15.38 0.6 undecidable manual S 277 0.3687 112 0.93 36
IV.SOI.EHE. 2021-09-26T08:57:11.59 1.0 undecidable manual P 232 0.5432 104 0.21 22
IV.JOPP.HHZ. 2021-09-26T08:57:11.97 0.1 undecidable manual P 290 0.5891 103 -0.17 90
IV.SELL.HNZ. 2021-09-26T08:57:11.54 0.6 undecidable manual P 2 0.572 103 -0.31 43
IV.FERC.HHZ.00 2021-09-26T08:57:08.83 0.3 undecidable manual P 277 0.3687 112 0.3 68
IV.PLAC.HHZ. 2021-09-26T08:57:08.34 0.3 undecidable manual S 287 0.1295 144 -0.34 70
IV.PLAC.HHZ. 2021-09-26T08:57:05.28 0.1 undecidable manual P 287 0.1295 144 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PLAC.HHN. ML:1.4 0.0001545 0.56 AML other m 2021-09-26T08:57:08.78
IV.PLAC.HHE. ML:0.9 4.723295E-5 0.9152 AML other m 2021-09-26T08:57:08.69
IV.JOPP.HHE. ML:0.8 9.826885E-6 0.4224 AML other m 2021-09-26T08:57:20.92
IV.JOPP.HHN. ML:1.1 2.075E-5 0.96 AML other m 2021-09-26T08:57:22.32
IV.PLAC.HNE. ML:1.5 0.0001877601 0.3968 AML other m 2021-09-26T08:57:08.61
IV.PLAC.HNN. ML:1.3 0.000126946755 0.2816 AML other m 2021-09-26T08:57:09.46
IV.FERC.HHE.00 ML:2.6 0.0011244551 0.5184 AML other m 2021-09-26T08:57:17.08
IV.FERC.HHN.00 ML:2.5 0.00100583555 0.3584 AML other m 2021-09-26T08:57:18.45
IV.JOPP.HNE. ML:1.3 3.316782E-5 0.448 AML other m 2021-09-26T08:57:20.84
IV.JOPP.HNN. ML:1.2 2.33681235E-5 0.48 AML other m 2021-09-26T08:57:20.68
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