Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 02-04-2010 and time 18:57:51 (Italy) in region 3 km NE Acquasanta Terme (AP)

A magnitude ML 2.3 earthquake occured in region: 3 km NE Acquasanta Terme (AP), on

  • 02-04-2010 16:57:51 (UTC)
  • 02-04-2010 18:57:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7880, 13.4380 at 21 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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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Acquasanta Terme AP 3 2916 2916
Valle Castellana TE 8 977 3893
Roccafluvione AP 9 2010 5903
Montegallo AP 11 523 6426
Venarotta AP 11 2066 8492
Arquata del Tronto AP 12 1178 9670
Palmiano AP 13 196 9866
Rocca Santa Maria TE 13 537 10403
Ascoli Piceno AP 14 49407 59810
Montemonaco AP 15 604 60414
Folignano AP 16 9241 69655
Accumoli RI 19 667 70322
Civitella del Tronto TE 19 5116 75438
Montefortino FM 19 1178 76616
Comunanza AP 19 3166 79782
Cortino TE 19 656 80438
Force AP 20 1354 81792

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km NW of Teramo (54892 inhabitants)
49 Km N of L'Aquila (69753 inhabitants)
63 Km E of Foligno (57155 inhabitants)
66 Km W of Montesilvano (53738 inhabitants)
69 Km E of Terni (111501 inhabitants)
73 Km NW of Pescara (121014 inhabitants)
77 Km NW of Chieti (51815 inhabitants)
93 Km S of Ancona (100861 inhabitants)
93 Km E of Perugia (166134 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		Md 2.4
ML 2.3 		2010-04-02
16:57:51		 42.788 13.438 21 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 1025639
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2010-04-02 16:57:51 ± 0.09
Latitude 42.7880 ± 0.0036
Longitude 13.4380 ± 0.0061
Depth (km) 21 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1025639

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 566
Semi-minor axis of confidence ellipse (meter) 173
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 241
Circular confidence region, given by single value of horizontal uncertainty (meter) 640.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 56
Number of associated phases, regardless of their use for origin computation 55
Number of defining phases 39
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.99555
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.5
Num. used stations
Type of magnitude ML
Reference to an origin 1025639
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 19:42:00

Md:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1025639
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 19:42:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MSSA.HHE. 2010-04-02T16:58:46.81 10.0 undecidable manual Pg 0 0 0
IV.SBPO.HHN. 2010-04-02T16:58:42.91 10.0 undecidable manual Pg 0 0 0
IV.PARC.HHE. 2010-04-02T16:58:34.59 10.0 undecidable manual Pg 0 0 0
IV.PIEI.HHE. 2010-04-02T16:58:23.71 0.3 undecidable manual Sg 319 110.5005 -0.152 62
IV.LPEL.HHN. 2010-04-02T16:58:21.66 0.3 undecidable manual Sg 143 102.4197 -0.066 66
IV.INTR.HHZ. 2010-04-02T16:58:20.32 0.3 undecidable manual Sg 156 94.239 0.757 54
IV.ARVD.HHN. 2010-04-02T16:58:19.35 10.0 undecidable manual Sg 0 0 0
IV.MURB.HHN. 2010-04-02T16:58:18.96 0.3 undecidable manual Sg 306 90.8424 0.302 64
IV.CESX.HHZ. 2010-04-02T16:58:14.72 10.0 undecidable manual Sg 0 0 0
IV.ARVD.HHN. 2010-04-02T16:58:14.78 10.0 undecidable manual Pg 0 0 0
IV.SDI.SHZ. 2010-04-02T16:58:13.74 10.0 undecidable manual Pg 0 0 0
IV.GUAR.HHN. 2010-04-02T16:58:13.96 10.0 undecidable manual Pg 0 0 0
IV.FSSB.SHZ. 2010-04-02T16:58:12.23 10.0 undecidable manual Pg 0 0 0
IV.FIAM.HHZ. 2010-04-02T16:58:11.48 0.3 undecidable manual Sg 205 63.3921 0.061 70
IV.MGAB.HHZ. 2010-04-02T16:58:10.62 0.3 undecidable manual Pg 278 108.7134 0.597 57
IV.CERT.HHN. 2010-04-02T16:58:09.34 0.6 undecidable manual Pg 202 100.3218 0.595 38
IV.VCEL.EHE. 2010-04-02T16:58:09.26 0.3 undecidable manual Sg 143 54.7008 0.113 70
IV.PIEI.HHE. 2010-04-02T16:58:09.89 0.3 undecidable manual Pg 319 110.5005 -0.41 59
IV.CESX.HHZ. 2010-04-02T16:58:09.14 10.0 undecidable manual Pg 0 0 0
IV.CESI.HHZ. 2010-04-02T16:58:08.07 0.3 undecidable manual Sg 299 49.5171 0.253 71
IV.LPEL.HHN. 2010-04-02T16:58:08.54 0.3 undecidable manual Pg 143 102.4197 -0.528 60
IV.T0104.HHZ. 2010-04-02T16:58:08.01 0.3 undecidable manual Sg 190 48.2184 0.534 65
IV.T0106.EHZ. 2010-04-02T16:58:08.75 0.3 undecidable manual Sg 185 53.6019 -0.115 72
IV.INTR.HHZ. 2010-04-02T16:58:07.29 0.3 undecidable manual Pg 156 94.239 -0.529 61
IV.MURB.HHN. 2010-04-02T16:58:07.35 0.3 undecidable manual Pg 306 90.8424 0.055 67
IV.AOI.HHE. 2010-04-02T16:58:06.86 0.6 undecidable manual Pg 9 85.5477 0.376 42
IV.PTQR.SHZ. 2010-04-02T16:58:06.04 0.3 undecidable manual Pg 182 85.0482 -0.373 64
IV.FDMO.HHZ. 2010-04-02T16:58:05.13 0.1 undecidable manual Sg 314 39.627 -0.157 95
IV.LNSS.HHZ. 2010-04-02T16:58:05.38 0.3 undecidable manual Sg 238 38.4282 0.398 69
IV.MNS.HHZ. 2010-04-02T16:58:04.96 0.3 undecidable manual Pg 234 76.2681 -0.109 68
IV.GUMA.HHN. 2010-04-02T16:58:03.51 0.3 undecidable manual Sg 345 31.5462 0.21 74
IV.FIAM.HHZ. 2010-04-02T16:58:02.87 0.3 undecidable manual Pg 205 63.3921 -0.245 68
IV.FAGN.HHN. 2010-04-02T16:58:02.53 0.3 undecidable manual Pg 168 59.1963 0.049 71
IV.NRCA.HHZ. 2010-04-02T16:58:02.16 0.1 undecidable manual Sg 281 26.751 -0.024 100
IV.VCEL.EHE. 2010-04-02T16:58:01.87 0.3 undecidable manual Pg 143 54.7008 0.066 71
IV.T0106.EHZ. 2010-04-02T16:58:01.43 0.3 undecidable manual Pg 185 53.6019 -0.212 70
IV.CING.HHE. 2010-04-02T16:58:01.74 10.0 undecidable manual Pg 0 0 0
IV.TERO.HHZ. 2010-04-02T16:58:01.11 0.1 undecidable manual Sg 144 22.8549 -0.185 99
IV.CESI.HHZ. 2010-04-02T16:58:00.90 0.3 undecidable manual Pg 299 49.5171 -0.138 71
IV.T0104.HHZ. 2010-04-02T16:58:00.60 0.3 undecidable manual Pg 190 48.2184 -0.239 70
IV.SMA1.EHN. 2010-04-02T16:58:00.44 0.1 undecidable manual Sg 206 19.3695 -0.139 100
MN.AQU.HHZ. 2010-04-02T16:58:00.74 0.6 undecidable manual Pg 183 48.3183 -0.112 48
IV.TRTR.HHN. 2010-04-02T16:58:00.20 0.3 undecidable manual Pg 87 38.8278 0.74 61
IV.FDMO.HHZ. 2010-04-02T16:57:59.29 0.1 undecidable manual Pg 314 39.627 -0.286 93
IV.LNSS.HHZ. 2010-04-02T16:57:59.36 0.3 undecidable manual Pg 238 38.4282 -0.04 74
IV.SACR.HHZ. 2010-04-02T16:57:59.15 10.0 undecidable manual Pg 0 0 0
IV.GUMA.HHN. 2010-04-02T16:57:58.45 0.3 undecidable manual Pg 345 31.5462 0.02 75
IV.TERO.HHZ. 2010-04-02T16:57:57.03 0.1 undecidable manual Pg 144 22.8549 -0.239 98
IV.NRCA.HHZ. 2010-04-02T16:57:57.64 0.3 undecidable manual Pg 281 26.751 -0.143 74
IV.OFFI.HHZ. 2010-04-02T16:57:57.95 0.3 undecidable manual Pg 51 25.8519 0.284 72
IV.SMA1.EHN. 2010-04-02T16:57:56.87 0.3 undecidable manual Pg 206 19.3695 0.013 77
IV.SALO.HHE. 2010-04-02T16:57:37.54 10.0 undecidable manual Pg 0 0 0
IV.SIRI.HHE. 2010-04-02T16:57:23.89 10.0 undecidable manual Pg 0 0 0
IV.MMN.HHZ. 2010-04-02T16:57:23.03 10.0 undecidable manual Pg 0 0 0
MN.CUC.HHZ. 2010-04-02T16:57:22.56 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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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