Earthquake 4 km SW Ocre (AQ), Magnitude ML 2.0, 8 April 2009 time 18:45:56 (Timezone Italy)

A magnitude ML 2.0 earthquake occured in region: 4 km SW Ocre (AQ), on

08-04-2009 16:45:56 (UTC)
08-04-2009 18:45:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.2600, 13.4470 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Ocre	AQ	4	1167	1167
Rocca di Cambio	AQ	4	533	1700
Fossa	AQ	5	721	2421
Sant'Eusanio Forconese	AQ	7	394	2815
Villa Sant'Angelo	AQ	8	424	3239
Rocca di Mezzo	AQ	8	1526	4765
Lucoli	AQ	10	1011	5776
San Demetrio ne' Vestini	AQ	10	1854	7630
Poggio Picenze	AQ	11	1136	8766
Fagnano Alto	AQ	11	418	9184
L'Aquila	AQ	11	69753	78937
Tornimparte	AQ	13	3187	82124
Prata d'Ansidonia	AQ	13	496	82620
Fontecchio	AQ	14	369	82989
Barisciano	AQ	14	1828	84817
Ovindoli	AQ	15	1227	86044
Tione degli Abruzzi	AQ	17	310	86354
Massa d'Albe	AQ	17	1476	87830
San Pio delle Camere	AQ	17	661	88491
Caporciano	AQ	19	230	88721
Santo Stefano di Sessanio	AQ	19	111	88832
Borgorose	RI	19	4591	93423
Magliano de' Marsi	AQ	20	3690	97113
Scoppito	AQ	20	3727	100840

Municipalities with at least 50000 inhabitants

An earthquake occurred to

11 Km SE of L'Aquila (69753 inhabitants)

49 Km SW of Teramo (54892 inhabitants)

60 Km W of Chieti (51815 inhabitants)

63 Km NE of Tivoli (56533 inhabitants)

64 Km W of Montesilvano (53738 inhabitants)

66 Km E of Guidonia Montecelio (88673 inhabitants)

67 Km W of Pescara (121014 inhabitants)

74 Km E of Terni (111501 inhabitants)

84 Km NE of Velletri (53303 inhabitants)

89 Km E of Roma (2864731 inhabitants)

99 Km SE of Foligno (57155 inhabitants)

99 Km NE of Latina (125985 inhabitants)

99 Km NE of Aprilia (73446 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 2.0	2009-04-08 16:45:56	42.26	13.447	10	2014-10-21 12:27:13	Bollettino Sismico Italiano INGV	775019

Preferred location and magnitude until now.

Origin information

Origin

Field	Value
Time (UTC)	2009-04-08 16:45:56 ± 0.07
Latitude	42.2600 ± 0.0036
Longitude	13.4470 ± 0.0049
Depth (km)	10 ± 0 (from location)
Evaluation mode of Origin	manual
Evaluation status of Origin	reviewed
Version	1000 -> BULLETIN-SISPICK
Event type	earthquake
Origin ID	775019

Uncertainty

Field	Value
Preferred uncertainty description	uncertainty ellipse
Semi-major axis of confidence ellipse (meter)	428
Semi-minor axis of confidence ellipse (meter)	316
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)	42
Circular confidence region, given by single value of horizontal uncertainty (meter)	565.7
Confidence level of the uncertainty (%)	68

Quality

Field	Value
Largest azimuthal gap in station distribution as seen from epicenter (degree)	47
Number of associated phases, regardless of their use for origin computation	35
Number of defining phases	25
RMS of the travel time residuals of the arrivals used for the origin computation (sec)	0.3
Epicentral distance of station closest to the epicenter (degree)	0.00000
Epicentral distance of station farthest from the epicenter (degree)	0.86065
Number of stations at which the event was observed	23
Number of stations from which data was used for origin computation	15

Magnitude information

ML:2.0

Field	Value
Value	2.0
Uncertainty	0.4
Num. used stations
Type of magnitude	ML
Reference to an origin	775019
Agency	INGV
Autore	Bollettino Sismico Italiano INGV
Time of creation (UTC)	2013-01-05 14:39:57

Picking and Arrival

SCNL	Time	Uncertainty	Polarity	Evaluation_mode	Phase	Azimuth	Distance(km)	Residual	Weight
IV.CERA.HHZ.	2009-04-08T16:46:23.29	10.0	undecidable	manual	Sg	0		0	0
IV.GIUL.HHN.	2009-04-08T16:46:21.56	10.0	undecidable	manual	Pg	0		0	0
IV.CERA.HHZ.	2009-04-08T16:46:17.72	10.0	undecidable	manual	Pg	0		0	0
IV.SDI.SHZ.	2009-04-08T16:46:17.86	1.0	undecidable	manual	Sg	154	67.9764	0.496	21
IV.GUAR.HHE.	2009-04-08T16:46:13.56	10.0	undecidable	manual	Sg	0		0	0
IV.ESLN.BHN.	2009-04-08T16:46:13.85	10.0	undecidable	manual	Pg	0		0	0
IV.FDMO.HHN.	2009-04-08T16:46:12.07	0.3	undecidable	manual	Pg	341	91.0422	-0.04	66
IV.MIDA.HHE.	2009-04-08T16:46:12.58	0.3	undecidable	manual	Pg	136	95.5377	-0.231	63
IV.INTR.HHZ.	2009-04-08T16:46:12.14	0.3	undecidable	manual	Sg	126	46.62	0.469	65
IV.MNS.HHZ.	2009-04-08T16:46:10.05	10.0	undecidable	manual	Pg	0		0	0
IV.TERO.HHZ.	2009-04-08T16:46:10.40	0.3	undecidable	manual	Sg	18	42.2244	-0.106	71
IV.LAV9.SHZ.	2009-04-08T16:46:09.56	10.0	undecidable	manual	Pg	0		0	0
IV.VCEL.EHZ.	2009-04-08T16:46:08.39	0.6	undecidable	manual	Sg	65	35.5422	-0.328	46
IV.GUAR.HHE.	2009-04-08T16:46:08.42	10.0	undecidable	manual	Pg	0		0	0
IV.SDI.SHZ.	2009-04-08T16:46:08.74	0.6	undecidable	manual	Pg	154	67.9764	0.181	45
IV.CAMP.HHZ.	2009-04-08T16:46:07.78	0.3	undecidable	manual	Sg	354	30.747	0.345	69
IV.PTQR.SHZ.	2009-04-08T16:46:06.30	0.3	undecidable	manual	Sg	188	26.6511	-0.035	74
IV.LNSS.HHZ.	2009-04-08T16:46:06.35	0.1	undecidable	manual	Pg	319	50.616	0.476	86
IV.FIAM.HHZ.	2009-04-08T16:46:06.61	0.3	undecidable	manual	Sg	272	27.0507	0.159	72
IV.CERT.HHZ.	2009-04-08T16:46:05.85	0.3	undecidable	manual	Pg	228	51.5151	-0.17	69
IV.TERO.HHZ.	2009-04-08T16:46:04.19	0.3	undecidable	manual	Pg	18	42.2244	-0.406	67
IV.INTR.HHZ.	2009-04-08T16:46:04.91	0.1	undecidable	manual	Pg	126	46.62	-0.361	89
IV.VVLD.HHZ.	2009-04-08T16:46:04.92	0.6	undecidable	manual	Pg	161	45.621	-0.195	46
IV.VCEL.EHZ.	2009-04-08T16:46:03.78	0.3	undecidable	manual	Pg	65	35.5422	0.215	70
IV.PTQR.SHZ.	2009-04-08T16:46:02.07	0.3	undecidable	manual	Pg	188	26.6511	-0.12	73
IV.FIAM.HHZ.	2009-04-08T16:46:02.17	0.3	undecidable	manual	Pg	272	27.0507	-0.085	73
IV.T0104.EHE.	2009-04-08T16:46:02.32	0.3	undecidable	manual	Sg	321	14.2746	-0.25	72
IV.CAMP.HHZ.	2009-04-08T16:46:02.32	0.6	undecidable	manual	Pg	354	30.747	-0.505	44
IV.FAGN.HHE.	2009-04-08T16:46:01.83	0.3	undecidable	manual	Sg	87	11.2776	0.073	76
MN.AQU.HHZ.	2009-04-08T16:46:01.71	0.3	undecidable	manual	Sg	341	11.0778	0.002	77
IV.T0104.EHE.	2009-04-08T16:46:00.11	0.3	undecidable	manual	Pg	321	14.2746	0.093	75
MN.AQU.HHZ.	2009-04-08T16:45:59.63	0.1	undecidable	manual	Pg	341	11.0778	0.11	100
IV.FAGN.HHE.	2009-04-08T16:45:59.71	0.1	undecidable	manual	Pg	87	11.2776	0.165	99
IV.MSC.EHZ.	2009-04-08T16:45:55.63	10.0	undecidable	manual	Pg	0		0	0
IV.NRCA.HHN.	2009-04-08T16:45:53.99	10.0	undecidable	manual	Pg	0		0	0

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
Waveforms	Seismic signals in miniseed + resp format	Download

Earthquake with magnitude of ML 2.0 on date 08-04-2009 and time 18:45:56 (Italy) in region 4 km SW Ocre (AQ)

Municipalities within 20 km from the epicenter

Municipalities with at least 50000 inhabitants

Origin

Uncertainty

Quality

ML:2.0