Earthquake 4 km E Santo Stefano in Aspromonte (RC), Magnitude ML 1.4, 25 October 2021 time 21:21:11 (Timezone UTC)

A magnitude ML 1.4 earthquake occured in region: 4 km E Santo Stefano in Aspromonte (RC), on

25-10-2021 21:21:11 (UTC)
25-10-2021 23:21:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.1700, 15.8360 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.

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Display location by

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).

Municipality	Region	Distance (km)	Inhabitants	Cumulative Inhabitants
Santo Stefano in Aspromonte	RC	4	1263	1263
Sant'Alessio in Aspromonte	RC	7	343	1606
Laganadi	RC	8	413	2019
Calanna	RC	10	934	2953
San Roberto	RC	10	1750	4703
Sant'Eufemia d'Aspromonte	RC	11	4120	8823
Delianuova	RC	11	3352	12175
Sinopoli	RC	11	2089	14264
Cardeto	RC	11	1641	15905
Scido	RC	12	931	16836
Bagnara Calabra	RC	13	10255	27091
Fiumara	RC	13	1018	28109
San Procopio	RC	13	534	28643
Scilla	RC	14	4964	33607
Cosoleto	RC	14	859	34466
Roccaforte del Greco	RC	15	476	34942
Santa Cristina d'Aspromonte	RC	15	929	35871
Melicuccà	RC	15	930	36801
Bagaladi	RC	16	1039	37840
Campo Calabro	RC	16	4536	42376
San Lorenzo	RC	18	2640	45016
Reggio di Calabria	RC	18	183035	228051
Villa San Giovanni	RC	18	13784	241835
Condofuri	RC	19	5113	246948
Seminara	RC	19	2811	249759
Oppido Mamertina	RC	19	5332	255091
Platì	RC	19	3812	258903

Municipalities with at least 50000 inhabitants

An earthquake occurred to

18 Km E of Reggio di Calabria (183035 inhabitants)

25 Km E of Messina (238439 inhabitants)

85 Km NE of Acireale (52622 inhabitants)

99 Km SW of Lamezia Terme (70714 inhabitants)

99 Km NE of Catania (314555 inhabitants)

Recent and historical seismicity

Not available maps for this sismic event.

Seismic hazard

Not available maps for this sismic event.

Shakemap

Not available maps for this sismic event.

Felt maps

Not available maps for this sismic event.

Locations history

Type	Magnitude	Date and Time (UTC)	Latitude	Longitude	Depth (km)	Published time (UTC)	Author	Location ID
Reviewed Rev100	ML 1.4	2021-10-25 21:21:11	38.1703	15.8358	11	2021-10-25 21:26:43	Sala Sismica INGV-Roma	96989001

Preferred location and magnitude until now.

Origin information

Origin

Field	Value
Time (UTC)	2021-10-25 21:21:11 ± 0.05
Latitude	38.1703 ± 0.0036
Longitude	15.8358 ± 0.0034
Depth (km)	11 (operator assigned)
Evaluation mode of Origin	manual
Evaluation status of Origin	reviewed
Version	100 -> SURVEY-INGV
Event type	earthquake
Origin ID	96989001

Uncertainty

Field	Value
Preferred uncertainty description	uncertainty ellipse
Semi-major axis of confidence ellipse (meter)	380
Semi-minor axis of confidence ellipse (meter)	320
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)	346
Circular confidence region, given by single value of horizontal uncertainty (meter)	380.0
Confidence level of the uncertainty (%)	68

Quality

Field	Value
Largest azimuthal gap in station distribution as seen from epicenter (degree)	98
Number of associated phases, regardless of their use for origin computation	8
Number of defining phases	8
RMS of the travel time residuals of the arrivals used for the origin computation (sec)	0.12
Epicentral distance of station closest to the epicenter (degree)	0.10072
Epicentral distance of station farthest from the epicenter (degree)	0.43797
Number of stations at which the event was observed	5
Number of stations from which data was used for origin computation	5

Magnitude information

ML:1.4

Field	Value
Value	1.4
Uncertainty	0.0
Num. used stations	4
Type of magnitude	ML
Reference to an origin	96989001
Agency	INGV
Autore	Sala Sismica INGV-Roma
Time of creation (UTC)	2021-10-25 21:26:43

Picking and Arrival

SCNL	Time	Uncertainty	Polarity	Evaluation_mode	Phase	Azimuth	Distance(km)	Takeoff_angle	Residual	Weight
IV.MPNC.HHZ.	2021-10-25T21:21:25.95	0.3	undecidable	manual	S	267	42.2244	50	0.15	71
IV.JOPP.HHZ.	2021-10-25T21:21:20.88	0.1	undecidable	manual	P	5	48.618	50	-0.07	95
IV.SOI.EHZ.	2021-10-25T21:21:20.33	0.3	undecidable	manual	S	119	21.867	50	-0.05	75
IV.MPNC.HHZ.	2021-10-25T21:21:19.83	0.1	undecidable	manual	P	267	42.2244	50	-0.14	95
MN.CEL.HHZ.	2021-10-25T21:21:17.27	0.3	undecidable	manual	S	27	11.1777	134	-0.09	76
IV.MTTG.HHZ.	2021-10-25T21:21:16.80	0.1	undecidable	manual	P	213	22.0668	50	-0.06	100
IV.SOI.EHZ.	2021-10-25T21:21:16.92	0.1	positive	manual	P	119	21.867	50	0.09	99
MN.CEL.HHZ.	2021-10-25T21:21:15.24	0.1	negative	manual	P	27	11.1777	134	0.15	100

Station Magnitude and Amplitude

SCNL	mag	Generic_amplitude	Period	Type	Category	Unit	Time_window_reference
MN.CEL.HHE.	ML:1.4	0.000309	0.2	AML	other	m	2021-10-25T21:21:17.31
MN.CEL.HNE.	ML:1.4	0.000299	0.2	AML	other	m	2021-10-25T21:21:17.41
MN.CEL.HHN.	ML:1.4	0.0002535	0.66	AML	other	m	2021-10-25T21:21:17.61
MN.CEL.HNN.	ML:1.4	0.0002585	0.64	AML	other	m	2021-10-25T21:21:17.61

TDMT - Time Domain Moment Tensor

Not available TDMT solution for this seismic event.

Fault Plane solutions in the area

Not available maps for this sismic event.

Download

Type	Description	Link
QuakeML - small	Event, Origin, FocalMechanism	Download
QuakeML - full	Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude	Download

Earthquake with magnitude of ML 1.4 on date 25-10-2021 and time 21:21:11 (UTC) in region 4 km E Santo Stefano in Aspromonte (RC)

Municipalities within 20 km from the epicenter

Municipalities with at least 50000 inhabitants

Origin

Uncertainty

Quality

ML:1.4