Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 13-08-2014 and time 01:49:17 (UTC) in region Costa Marchigiana Picena (Ascoli Piceno)

A magnitude ML 2.1 earthquake occured in region: Costa Marchigiana Picena (Ascoli Piceno), on

  • 13-08-2014 01:49:17 (UTC)
  • 13-08-2014 03:49:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9950, 14.0910 at 38 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
San Benedetto del Tronto AP 18 47303 47303
Grottammare AP 18 16006 63309
Martinsicuro TE 19 16033 79342
Cupra Marittima AP 19 5398 84740

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km NE of Teramo (54892 inhabitants)
54 Km N of Montesilvano (53738 inhabitants)
60 Km N of Pescara (121014 inhabitants)
72 Km N of Chieti (51815 inhabitants)
83 Km SE of Ancona (100861 inhabitants)
91 Km NE of L'Aquila (69753 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 2.1 2014-08-13
01:49:17		 42.995 14.0912 38 2015-09-21
09:39:02		 Bollettino Sismico Italiano INGV 16436011
Reviewed
Rev100 		ML 2.1 2014-08-13
01:49:17		 42.9888 14.0852 39 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 7781981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-08-13 01:49:17 ± 0.25
Latitude 42.9950 ± 0.0153
Longitude 14.0912 ± 0.0209
Depth (km) 38 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 16436011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1965
Semi-minor axis of confidence ellipse (meter) 1343
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 224
Circular confidence region, given by single value of horizontal uncertainty (meter) 1970.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 239
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.22753
Epicentral distance of station farthest from the epicenter (degree) 0.87864
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 7781981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-08-13 02:03:08

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 1
Type of magnitude ML
Reference to an origin 16436011
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-05-08 09:57:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SNTG.HHZ. 2014-08-13T01:49:46.80 1.0 undecidable manual S 288 97.5246 54 0.73 19
IV.NRCA.HHZ. 2014-08-13T01:49:42.80 1.0 undecidable manual S 258 81.3519 54 0.21 24
IV.CSP1.EHZ. 2014-08-13T01:49:40.60 0.3 undecidable manual S 279 72.6717 54 -0.11 73
IV.GUMA.HHZ. 2014-08-13T01:49:38.40 0.3 undecidable manual S 277 61.7937 54 0.04 75
IV.TERO.HHZ. 2014-08-13T01:49:37.20 0.3 undecidable manual S 224 57.1983 119 -0.14 71
IV.MNTP.HNE. 2014-08-13T01:49:36.20 0.6 undecidable manual S 288 52.8027 121 -0.12 51
IV.SNTG.HHZ. 2014-08-13T01:49:34.61 0.6 undecidable manual P 288 97.5246 54 0.52 42
IV.OFFI.HHZ. 2014-08-13T01:49:32.60 0.3 undecidable manual S 259 33.5442 135 0.34 75
IV.TRTR.HHZ. 2014-08-13T01:49:31.10 0.3 undecidable manual S 215 25.2525 143 0.3 78
IV.NRCA.HHZ. 2014-08-13T01:49:31.92 0.1 undecidable manual P 258 81.3519 54 -0.16 94
IV.CSP1.EHZ. 2014-08-13T01:49:30.85 0.1 undecidable manual P 279 72.6717 54 -0.15 97
IV.VCEL.EHE. 2014-08-13T01:49:30.83 1.0 undecidable manual P 197 69.6747 54 0.2 25
IV.PP3.EHZ. 2014-08-13T01:49:29.70 0.3 undecidable manual P 318 57.5979 119 0.6 62
IV.GUMA.HHZ. 2014-08-13T01:49:29.77 0.3 undecidable manual P 277 61.7937 54 0.13 74
IV.TERO.HHZ. 2014-08-13T01:49:28.82 0.1 undecidable manual P 224 57.1983 119 -0.23 95
IV.MNTP.HNE. 2014-08-13T01:49:28.35 0.6 undecidable manual P 288 52.8027 121 -0.11 51
IV.OFFI.HHZ. 2014-08-13T01:49:25.77 0.1 undecidable manual P 259 33.5442 135 -0.35 99
IV.TRTR.HHZ. 2014-08-13T01:49:25.70 0.1 undecidable manual P 215 25.2525 143 0.43 100
IV.CADA.HNE. 2014-08-13T01:49:25.33 0.3 undecidable manual P 310 34.6431 134 -0.9 64
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TRTR.HHN. ML:2.9 0.00221 0.36 AML other m 2014-08-13T01:49:37.36
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