Earthquake 3 km S Serra San Quirico (AN), Magnitude ML 1.2, 5 February 2021 time 17:24:39 (Timezone Italy)

A magnitude ML 1.2 (quarry blast) earthquake occured in region: 3 km S Serra San Quirico (AN), on

05-02-2021 16:24:39 (UTC)
05-02-2021 17:24:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4240, 13.0150 at 0 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Event type: quarry blast.

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
Serra San Quirico	AN	3	2850	2850
Mergo	AN	6	1037	3887
Genga	AN	6	1797	5684
Poggio San Vicino	MC	8	246	5930
Rosora	AN	8	1985	7915
Cupramontana	AN	9	4756	12671
Castelplanio	AN	10	3540	16211
Apiro	MC	10	2280	18491
Maiolati Spontini	AN	10	6248	24739
Arcevia	AN	11	4612	29351
Poggio San Marcello	AN	11	693	30044
Cerreto d'Esi	AN	12	3817	33861
Monte Roberto	AN	12	3061	36922
Montecarotto	AN	12	1987	38909
Sassoferrato	AN	13	7285	46194
Castelbellino	AN	13	4947	51141
Fabriano	AN	13	31480	82621
San Paolo di Jesi	AN	13	933	83554
Serra de' Conti	AN	13	3746	87300
Staffolo	AN	14	2253	89553
Cingoli	MC	17	10352	99905
Barbara	AN	18	1368	101273
Matelica	MC	19	9981	111254
Esanatoglia	MC	20	2034	113288

Municipalities with at least 50000 inhabitants

An earthquake occurred to

46 Km W of Ancona (100861 inhabitants)

47 Km S of Fano (60888 inhabitants)

55 Km S of Pesaro (94582 inhabitants)

58 Km NE of Foligno (57155 inhabitants)

62 Km NE of Perugia (166134 inhabitants)

80 Km SE of Rimini (147750 inhabitants)

92 Km E of Arezzo (99543 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 1.2	2021-02-05 16:24:39	43.4238	13.0152	1	2021-02-05 16:35:14	Sala Sismica INGV-Roma	86859221

Preferred location and magnitude until now.

Origin information

Origin

Field	Value
Time (UTC)	2021-02-05 16:24:39 ± 0.23
Latitude	43.4238 ± 0.0144
Longitude	13.0152 ± 0.0248
Depth (km)	1 (operator assigned)
Evaluation mode of Origin	manual
Evaluation status of Origin	reviewed
Version	100 -> SURVEY-INGV
Event type	quarry blast
Origin ID	86859221

Uncertainty

Field	Value
Preferred uncertainty description	uncertainty ellipse
Semi-major axis of confidence ellipse (meter)	2300
Semi-minor axis of confidence ellipse (meter)	1080
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)	236
Circular confidence region, given by single value of horizontal uncertainty (meter)	2300.0
Confidence level of the uncertainty (%)	68

Quality

Field	Value
Largest azimuthal gap in station distribution as seen from epicenter (degree)	182
Number of associated phases, regardless of their use for origin computation	7
Number of defining phases	6
RMS of the travel time residuals of the arrivals used for the origin computation (sec)	0.24
Epicentral distance of station closest to the epicenter (degree)	0.00000
Epicentral distance of station farthest from the epicenter (degree)	0.35883
Number of stations at which the event was observed	7
Number of stations from which data was used for origin computation	6

Magnitude information

ML:1.2

Field	Value
Value	1.2
Uncertainty	0.1
Num. used stations	6
Type of magnitude	ML
Reference to an origin	86859221
Agency	INGV
Autore	Sala Sismica INGV-Roma
Time of creation (UTC)	2021-02-05 16:35:14

Picking and Arrival

SCNL	Time	Uncertainty	Polarity	Evaluation_mode	Phase	Azimuth	Distance(km)	Takeoff_angle	Residual	Weight
IV.CAMP.HHZ.	2021-02-05T16:24:55.21	3.0	undecidable	manual	P				-0.05	0
IV.CSP1.EHZ.	2021-02-05T16:24:46.69	1.0	undecidable	manual	P	157	39.8268	91	-0.65	20
IV.MPAG.EHZ.	2021-02-05T16:24:45.17	1.0	undecidable	manual	P	318	30.747	91	-0.33	23
IV.SSFR.HHZ.	2021-02-05T16:24:43.18	0.3	undecidable	manual	P	274	18.87	92	0.06	73
IV.EL6.EHZ.	2021-02-05T16:24:42.42	1.0	positive	manual	P	146	12.5763	92	0.55	22
IV.ARVD.HHZ.	2021-02-05T16:24:41.40	0.1	negative	manual	P	324	10.1787	93	0.01	100
IV.MMUR.HNZ.	2021-02-05T16:24:39.96	1.0	undecidable	manual	P	324	2.4975	101	0.11	25

Station Magnitude and Amplitude

SCNL	mag	Generic_amplitude	Period	Type	Category	Unit	Time_window_reference
IV.ARVD.HHN.	ML:1.2	0.0003275	1.14	AML	other	m	2021-02-05T16:24:44.02
IV.ARVD.HHE.	ML:1.4	0.000489	0.74	AML	other	m	2021-02-05T16:24:47.52
IV.SSFR.HHN.	ML:1.3	0.00019	0.76	AML	other	m	2021-02-05T16:24:48.85
IV.SSFR.HHE.	ML:1.3	0.0001665	1.08	AML	other	m	2021-02-05T16:24:49.87
IV.MPAG.EHN.	ML:1.1	0.00006290000000000001	0.62	AML	other	m	2021-02-05T16:24:54.35
IV.MPAG.EHE.	ML:1.1	0.0000605	0.56	AML	other	m	2021-02-05T16:25:04.57

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 (quarry blast) with magnitude of ML 1.2 on date 05-02-2021 and time 17:24:39 (Italy) in region 3 km S Serra San Quirico (AN)

Municipalities within 20 km from the epicenter

Municipalities with at least 50000 inhabitants

Origin

Uncertainty

Quality

ML:1.2