Earthquake with magnitude of Md 2.1 on date 13-05-1985 and time 19:27:19 (UTC) in region 3 km E Acquaviva Picena (AP)

A magnitude Md 2.1 earthquake occured in region: 3 km E Acquaviva Picena (AP), on

  • 13-05-1985 19:27:19 (UTC)
  • 13-05-1985 21:27:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9540, 13.8480 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Acquaviva Picena AP 3 3831 3831
San Benedetto del Tronto AP 3 47303 51134
Monteprandone AP 4 12655 63789
Grottammare AP 4 16006 79795
Monsampolo del Tronto AP 8 4611 84406
Cupra Marittima AP 8 5398 89804
Ripatransone AP 9 4309 94113
Colonnella TE 9 3734 97847
Spinetoli AP 9 7215 105062
Martinsicuro TE 9 16033 121095
Controguerra TE 11 2436 123531
Castorano AP 12 2380 125911
Massignano AP 12 1638 127549
Colli del Tronto AP 12 3668 131217
Offida AP 13 5058 136275
Cossignano AP 13 978 137253
Montefiore dell'Aso AP 14 2123 139376
Corropoli TE 14 5045 144421
Campofilone FM 14 1916 146337
Castel di Lama AP 14 8634 154971
Alba Adriatica TE 15 12353 167324
Nereto TE 15 5242 172566
Ancarano TE 16 1857 174423
Torano Nuovo TE 16 1611 176034
Appignano del Tronto AP 16 1785 177819
Carassai AP 16 1100 178919
Pedaso FM 16 2800 181719
Tortoreto TE 17 11542 193261
Moresco FM 17 598 193859
Altidona FM 18 3390 197249
Sant'Egidio alla Vibrata TE 18 9811 207060
Monterubbiano FM 18 2230 209290
Castignano AP 18 2796 212086
Lapedona FM 19 1166 213252
Sant'Omero TE 19 5243 218495
Maltignano AP 19 2401 220896
Montalto delle Marche AP 20 2122 223018

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NE of Teramo (54892 inhabitants)
55 Km NW of Montesilvano (53738 inhabitants)
62 Km NW of Pescara (121014 inhabitants)
72 Km NW of Chieti (51815 inhabitants)
76 Km NE of L'Aquila (69753 inhabitants)
78 Km SE of Ancona (100861 inhabitants)
93 Km E of Foligno (57155 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 2.1 1985-05-13
19:27:19
42.954 13.848 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 6209
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-05-13 19:27:19 ± 0.92
Latitude 42.9540 ± 0.0198
Longitude 13.8480 ± 0.0682
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 6209

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 5969.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 294
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00235
Epicentral distance of station farthest from the epicenter (degree) 0.00923
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 6209
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:10:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 1985-05-13T19:27:40.00 10.0 undecidable manual PG 236 1.0212 0.72 0.4
--.CM2.Z. 1985-05-13T19:27:39.80 10.0 undecidable manual SG 294 0.5661 0.55 0.5
--.AS1.Z. 1985-05-13T19:27:37.00 10.0 undecidable manual PG 277 0.8769 0.48 0.7
--.PO9.Z. 1985-05-13T19:27:33.50 10.0 undecidable manual PG 240 0.7659 -0.89 0.3
--.CM2.Z. 1985-05-13T19:27:30.30 10.0 undecidable manual PG 294 0.5661 -0.43 1.9
--.ALP.Z. 1985-05-13T19:27:29.40 10.0 undecidable manual SG 229 0.2553 -0.26 0.7
--.ALP.Z. 1985-05-13T19:27:25.40 10.0 positive manual PG 229 0.2553 0.2 2.5
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