Earthquake 3 km E Genga (AN), Magnitude ML 0.8, 28 October 2021 time 11:57:44 (Timezone UTC)

A magnitude ML 0.8 (quarry blast) earthquake occured in region: 3 km E Genga (AN), on

28-10-2021 11:57:44 (UTC)
28-10-2021 13:57:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4230, 12.9710 at 0 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Genga	AN	3	1797	1797
Serra San Quirico	AN	5	2850	4647
Mergo	AN	8	1037	5684
Arcevia	AN	9	4612	10296
Sassoferrato	AN	9	7285	17581
Poggio San Vicino	MC	10	246	17827
Rosora	AN	11	1985	19812
Fabriano	AN	11	31480	51292
Cerreto d'Esi	AN	11	3817	55109
Cupramontana	AN	12	4756	59865
Castelplanio	AN	12	3540	63405
Poggio San Marcello	AN	13	693	64098
Apiro	MC	13	2280	66378
Maiolati Spontini	AN	14	6248	72626
Montecarotto	AN	14	1987	74613
Serra de' Conti	AN	15	3746	78359
Monte Roberto	AN	15	3061	81420
Castelbellino	AN	16	4947	86367
San Paolo di Jesi	AN	17	933	87300
Staffolo	AN	18	2253	89553
Serra Sant'Abbondio	PU	18	1027	90580
Barbara	AN	18	1368	91948
Matelica	MC	19	9981	101929
Esanatoglia	MC	19	2034	103963
Pergola	PU	19	6333	110296

Municipalities with at least 50000 inhabitants

An earthquake occurred to

47 Km S of Fano (60888 inhabitants)

49 Km W of Ancona (100861 inhabitants)

55 Km S of Pesaro (94582 inhabitants)

56 Km NE of Foligno (57155 inhabitants)

59 Km NE of Perugia (166134 inhabitants)

78 Km SE of Rimini (147750 inhabitants)

88 Km E of Arezzo (99543 inhabitants)

99 Km SE of Cesena (96758 inhabitants)

99 Km N of Terni (111501 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
Bulletin Rev1000	ML 0.8	2021-10-28 11:57:44	43.4227	12.9713	1	2022-03-30 13:04:30	Bollettino Sismico Italiano INGV	99747591
Reviewed Rev100	ML 1.0	2021-10-28 11:57:44	43.4458	13.0023	8	2021-10-28 12:09:18	Sala Sismica INGV-Roma	97040721

Preferred location and magnitude until now.

Origin information

Origin

Field	Value
Time (UTC)	2021-10-28 11:57:44 ± 0.15
Latitude	43.4227 ± 0.0099
Longitude	12.9713 ± 0.0149
Depth (km)	1 (operator assigned)
Evaluation mode of Origin	manual
Evaluation status of Origin	reviewed
Version	1000 -> BULLETIN-INGV
Event type	quarry blast
Origin ID	99747591

Uncertainty

Field	Value
Preferred uncertainty description	uncertainty ellipse
Semi-major axis of confidence ellipse (meter)	1380
Semi-minor axis of confidence ellipse (meter)	910
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)	228
Circular confidence region, given by single value of horizontal uncertainty (meter)	1380.0
Confidence level of the uncertainty (%)	68

Quality

Field	Value
Largest azimuthal gap in station distribution as seen from epicenter (degree)	88
Number of associated phases, regardless of their use for origin computation	30
Number of defining phases	11
RMS of the travel time residuals of the arrivals used for the origin computation (sec)	0.41
Epicentral distance of station closest to the epicenter (degree)	0.00000
Epicentral distance of station farthest from the epicenter (degree)	0.39480
Number of stations at which the event was observed	27
Number of stations from which data was used for origin computation	11

Magnitudes information

ML:1.0

Field	Value
Value	1.0
Uncertainty	0.2
Num. used stations	5
Type of magnitude	ML
Reference to an origin	97040721
Agency	INGV
Autore	Sala Sismica INGV-Roma
Time of creation (UTC)	2021-10-28 12:09:18

ML:0.8

Field	Value
Value	0.8
Uncertainty	0.3
Num. used stations	3
Type of magnitude	ML
Reference to an origin	99747591
Agency	INGV
Autore	Bollettino Sismico Italiano INGV
Time of creation (UTC)	2022-01-13 15:37:51

Picking and Arrival

SCNL	Time	Uncertainty	Polarity	Evaluation_mode	Phase	Azimuth	Distance(km)	Takeoff_angle	Residual	Weight
SI.ROSI.HHZ.	2021-10-28T11:59:39.31	3.0	undecidable	manual	Sg				10.43	0
CH.BERNI.HHZ.	2021-10-28T11:59:28.22	3.0	undecidable	manual	Sn				-0.02	0
IV.VBKN.HHZ.	2021-10-28T11:59:13.43	3.0	undecidable	manual	Sg				9.15	0
IX.SCL3.EHZ.02	2021-10-28T11:59:12.97	3.0	undecidable	manual	Sn				-3.82	0
IV.CTI.HHZ.	2021-10-28T11:59:10.83	3.0	undecidable	manual	Sg				3.58	0
OX.MPRI.HHZ.	2021-10-28T11:59:09.64	3.0	undecidable	manual	Sg				1.78	0
IV.ZEN8.EHZ.	2021-10-28T11:59:03.51	3.0	undecidable	manual	Sn				-2.3	0
OT.OT17.EHZ.	2021-10-28T11:58:57.84	3.0	undecidable	manual	Sg				1.39	0
IV.TST01.HHZ.	2021-10-28T11:58:48.34	3.0	undecidable	manual	Sg				4.44	0
IV.BRES.EHZ.	2021-10-28T11:58:46.23	3.0	undecidable	manual	Pg				7.28	0
IX.CLT3.EHZ.02	2021-10-28T11:58:39.42	3.0	positive	manual	Pg				6.34	0
GU.CANO.HHZ.	2021-10-28T11:58:38.76	3.0	undecidable	manual	Pn				-1.5	0
SI.ROSI.HHZ.	2021-10-28T11:58:36.09	3.0	undecidable	manual	Pn				-6.76	0
IV.VIVA.HHZ.	2021-10-28T11:58:35.41	3.0	undecidable	manual	Sn				-1.4	0
RD.PGF.BHZ.	2021-10-28T11:58:34.64	3.0	undecidable	manual	Pn				1.35	0
IT.SULP.HGZ.	2021-10-28T11:58:30.05	3.0	undecidable	manual	S				-2.54	0
OX.MPRI.HHZ.	2021-10-28T11:58:22.62	3.0	positive	manual	Pn				-8.42	0
IV.SFI.EHZ.	2021-10-28T11:58:19.43	3.0	undecidable	manual	S				-1.4	0
IV.VIVA.HHZ.	2021-10-28T11:58:18.93	3.0	negative	manual	Pg				5.33	0
IV.CSP1.EHZ.	2021-10-28T11:57:52.61	0.6	undecidable	manual	P	153	41.2254	91	-0.42	43
IV.NARO.HHZ.	2021-10-28T11:57:52.11	0.3	undecidable	manual	P	304	37.7289	91	-0.21	69
IV.FDMO.HHZ.	2021-10-28T11:57:52.96	0.6	undecidable	manual	P	168	43.8228	91	-0.59	41
IV.PIEI.HHZ.	2021-10-28T11:57:51.26	0.3	undecidable	manual	P	290	37.3293	91	-0.97	53
IV.MPAG.EHZ.	2021-10-28T11:57:50.37	0.3	undecidable	manual	P	323	28.5492	91	-0.11	71
IV.SNTG.HHZ.	2021-10-28T11:57:49.09	0.3	undecidable	manual	P	188	18.7701	92	0.57	65
IV.SSFR.HHZ.	2021-10-28T11:57:48.55	0.3	undecidable	manual	P	276	15.2736	92	0.72	61
IV.CING.HHE.	2021-10-28T11:57:48.39	0.3	undecidable	manual	P	106	18.7701	92	-0.14	72
IV.EL6.EHZ.	2021-10-28T11:57:47.85	0.1	undecidable	manual	P	135	14.7741	92	0.13	97
IV.ARVD.HHZ.	2021-10-28T11:57:46.79	0.1	undecidable	manual	P	344	8.6802	93	0.28	95
IV.MMUR.HNZ.	2021-10-28T11:57:45.44	0.1	undecidable	manual	P	45	2.997	99	0.07	100

Station Magnitude and Amplitude

SCNL	mag	Generic_amplitude	Period	Type	Category	Unit	Time_window_reference
IV.SSFR.HHN.	ML:1.1	0.0001365	0.98	AML	other	m	2021-10-28T11:57:52.92
IV.SNTG.HHE.	ML:0.7	0.0000453	0.32	AML	other	m	2021-10-28T11:57:52.76
IV.SNTG.HHN.	ML:0.5	0.00003105	0.76	AML	other	m	2021-10-28T11:57:53.99

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 0.8 on date 28-10-2021 and time 11:57:44 (UTC) in region 3 km E Genga (AN)

Municipalities within 20 km from the epicenter

Municipalities with at least 50000 inhabitants

Origin

Uncertainty

Quality

ML:1.0

ML:0.8