Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 22-08-2013 and time 20:58:45 (UTC) in region Costa Marchigiana Anconetana (Ancona)

A magnitude ML 2.0 earthquake occured in region: Costa Marchigiana Anconetana (Ancona), on

  • 22-08-2013 20:58:45 (UTC)
  • 22-08-2013 22:58:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.5260, 13.7380 at 8 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
Numana AN 9 3775 3775
Sirolo AN 10 4051 7826
Porto Recanati MC 12 12531 20357
Loreto AN 14 12814 33171
Camerano AN 15 7322 40493
Castelfidardo AN 17 18733 59226
Potenza Picena MC 20 15936 75162

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km SE of Ancona (100861 inhabitants)
68 Km SE of Fano (60888 inhabitants)
79 Km SE of Pesaro (94582 inhabitants)
96 Km N of Teramo (54892 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 		ML 2.0 2013-08-22
20:58:45		 43.5263 13.7377 8 2015-01-20
11:28:44		 Bollettino Sismico Italiano INGV 8481901
Reviewed
Rev100 		ML 2.0 2013-08-22
20:58:44		 43.5333 13.7748 5 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 4320731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-08-22 20:58:45 ± 0.24
Latitude 43.5263 ± 0.0072
Longitude 13.7377 ± 0.0149
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 8481901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1318
Semi-minor axis of confidence ellipse (meter) 562
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 67
Circular confidence region, given by single value of horizontal uncertainty (meter) 1320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 254
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.79950
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 8481901
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:09:39

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 4320731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-08-22 21:13:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MGAB.HHZ. 2013-08-22T20:59:12.17 3.0 negative manual P -0.86 0
IV.CAFI.HHZ. 2013-08-22T20:59:11.67 3.0 negative manual P 0.03 0
IV.ATTE.HHZ. 2013-08-22T20:59:08.39 3.0 negative manual P 0.96 0
IV.CPGN.EHZ. 2013-08-22T20:59:08.38 3.0 negative manual P 0.6 0
IV.ARVD.HHZ. 2013-08-22T20:59:06.06 0.3 undecidable manual S 267 64.0914 50 0.48 64
IV.ATVO.HHZ. 2013-08-22T20:59:06.67 3.0 positive manual P 1.1 0
IV.GUMA.HHE. 2013-08-22T20:59:05.02 0.6 undecidable manual S 212 60.7947 50 0.32 44
IV.PE3.EHZ. 2013-08-22T20:59:05.14 3.0 positive manual P 0.51 0
IV.EL6.EHE. 2013-08-22T20:59:03.19 0.3 undecidable manual S 247 55.6998 50 -0.14 69
IV.ATCC.EHZ. 2013-08-22T20:59:02.70 3.0 positive manual P -1.25 0
IV.SENI.EHE. 2013-08-22T20:59:00.95 0.6 undecidable manual S 296 45.1215 50 0.44 44
IV.NARO.HHZ. 2013-08-22T20:59:00.93 3.0 undecidable manual P -1.83 0
IV.CING.HHE. 2013-08-22T20:59:00.56 0.3 undecidable manual S 249 46.7199 50 -0.38 67
IV.CESI.HHE. 2013-08-22T20:59:00.79 0.3 undecidable manual P 230 88.7445 50 0.03 67
IV.MPAG.EHZ. 2013-08-22T20:58:59.82 0.6 undecidable manual P 279 79.4649 50 0.49 41
IV.FSSB.HHZ. 2013-08-22T20:58:59.20 0.6 undecidable manual P 284 79.365 50 -0.11 45
IV.FDMO.HHE. 2013-08-22T20:58:58.22 0.1 undecidable manual P 224 75.5688 50 -0.51 82
IV.SNTG.HHZ. 2013-08-22T20:58:58.26 1.0 negative manual P 245 70.9734 50 0.24 22
IV.CSP1.EHE. 2013-08-22T20:58:57.14 0.3 undecidable manual P 222 64.5909 50 0.1 69
IV.GUMA.HHE. 2013-08-22T20:58:56.27 0.3 undecidable manual P 212 60.7947 50 -0.19 68
IV.ARVD.HHZ. 2013-08-22T20:58:56.71 0.6 positive manual P 267 64.0914 50 -0.26 45
IV.COR1.EHZ. 2013-08-22T20:58:56.89 3.0 positive manual P 0.04 0
IV.EL6.EHE. 2013-08-22T20:58:55.41 0.6 undecidable manual P 247 55.6998 50 -0.26 45
IV.SENI.EHE. 2013-08-22T20:58:54.47 0.6 undecidable manual P 296 45.1215 50 0.43 44
IV.CING.HHE. 2013-08-22T20:58:53.74 0.6 undecidable manual P 249 46.7199 50 -0.55 43
IV.PCRO.HNE. 2013-08-22T20:58:52.27 0.3 undecidable manual S 299 18.7701 112 0.05 76
IV.PP3.EHE. 2013-08-22T20:58:52.78 0.3 undecidable manual S 212 19.4694 111 0.35 71
IV.CIMA.HNE. 2013-08-22T20:58:50.84 0.3 undecidable manual P 193 25.1526 107 0.39 70
IV.AOI.HHE. 2013-08-22T20:58:49.63 0.3 undecidable manual S 284 11.1777 124 -0.25 74
IV.PP3.EHE. 2013-08-22T20:58:49.29 0.1 undecidable manual P 212 19.4694 111 -0.08 100
IV.PCRO.HNE. 2013-08-22T20:58:49.43 0.1 undecidable manual P 299 18.7701 112 0.17 98
IV.AOI.HHE. 2013-08-22T20:58:47.66 0.1 undecidable manual P 284 11.1777 124 -0.25 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARVD.HHN. ML:1.6 0.00007075000000000001 0.54 AML other m 2013-08-22T20:59:07.02
IV.ARVD.HHE. ML:1.6 0.000077 0.28 AML other m 2013-08-22T20:59:12.89
IV.ATCC.EHN. ML:2.3 0.000209 0.32 AML other m 2013-08-22T20:59:21.08
IV.ATCC.EHE. ML:2.2 0.000167 0.42 AML other m 2013-08-22T20:59:22.48
IV.ATTE.HHE. ML:2.0 0.00008080000000000001 1.58 AML other m 2013-08-22T20:59:28.48
IV.ATTE.HHN. ML:2.0 0.00006900000000000001 0.48 AML other m 2013-08-22T20:59:29.79
IV.ATVO.HHN. ML:1.8 0.0000533 0.94 AML other m 2013-08-22T20:59:26.64
IV.ATVO.HHE. ML:1.8 0.000060950000000000004 1.58 AML other m 2013-08-22T20:59:26.48
IV.CAFI.HHE. ML:1.8 0.00003825 0.56 AML other m 2013-08-22T20:59:34.14
IV.CAFI.HHN. ML:1.9 0.0000435 0.62 AML other m 2013-08-22T20:59:36.46
IV.FSSB.HHN. ML:2.4 0.00034599999999999995 0.26 AML other m 2013-08-22T20:59:16.68
IV.FSSB.HHE. ML:2.3 0.00029549999999999997 1.18 AML other m 2013-08-22T20:59:17.10
IV.MGAB.HHN. ML:2.2 0.00007495 1.18 AML other m 2013-08-22T20:59:35.09
IV.MGAB.HHE. ML:2.3 0.00010125000000000001 0.88 AML other m 2013-08-22T20:59:36.11
IV.MPAG.EHE. ML:1.9 0.00011300000000000001 0.42 AML other m 2013-08-22T20:59:15.63
IV.MPAG.EHN. ML:2.0 0.0001375 0.3 AML other m 2013-08-22T20:59:15.76
IV.NARO.HHN. ML:1.8 0.00006214999999999999 0.62 AML other m 2013-08-22T20:59:18.77
IV.NARO.HHE. ML:1.8 0.0000757 1.08 AML other m 2013-08-22T20:59:19.77
IV.PE3.EHN. ML:2.8 0.0005475 0.44 AML other m 2013-08-22T20:59:22.09
IV.PE3.EHE. ML:2.5 0.0003215 0.44 AML other m 2013-08-22T20:59:22.93
IV.PIEI.HHE. ML:2.0 0.00009279999999999999 0.26 AML other m 2013-08-22T20:59:19.81
IV.PIEI.HHN. ML:1.9 0.00008505000000000001 0.28 AML other m 2013-08-22T20:59:20.14
IV.SNTG.HHN. ML:1.9 0.0001295 0.32 AML other m 2013-08-22T20:59:11.80
IV.SNTG.HHE. ML:1.7 0.0000757 0.24 AML other m 2013-08-22T20:59:09.46
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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