Earthquake with magnitude of Md 2.3 on date 19-09-1985 and time 03:20:18 (Italy) in region 2 km SE Sant'Angelo in Pontano (MC)

A magnitude Md 2.3 earthquake occured in region: 2 km SE Sant'Angelo in Pontano (MC), on

  • 19-09-1985 01:20:18 (UTC)
  • 19-09-1985 03:20:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0890, 13.4120 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
Sant'Angelo in Pontano MC 2 1436 1436
Penna San Giovanni MC 4 1108 2544
Falerone FM 6 3337 5881
Gualdo MC 6 815 6696
Servigliano FM 7 2336 9032
Monte San Martino MC 7 765 9797
Monte Vidon Corrado FM 7 731 10528
Ripe San Ginesio MC 7 852 11380
Montappone FM 7 1682 13062
San Ginesio MC 8 3498 16560
Loro Piceno MC 9 2401 18961
Massa Fermana FM 9 963 19924
Colmurano MC 10 1263 21187
Smerillo FM 10 365 21552
Santa Vittoria in Matenano FM 10 1330 22882
Belmonte Piceno FM 10 646 23528
Monteleone di Fermo FM 11 395 23923
Sarnano MC 11 3264 27187
Montegiorgio FM 11 6851 34038
Montefalcone Appennino FM 12 424 34462
Monsampietro Morico FM 12 659 35121
Mogliano MC 12 4696 39817
Urbisaglia MC 12 2628 42445
Cessapalombo MC 13 512 42957
Amandola FM 13 3629 46586
Camporotondo di Fiastrone MC 13 563 47149
Montelparo FM 13 778 47927
Montottone FM 14 979 48906
Comunanza AP 15 3166 52072
Force AP 15 1354 53426
Monte Rinaldo FM 15 379 53805
Magliano di Tenna FM 15 1452 55257
Petriolo MC 15 1998 57255
Francavilla d'Ete FM 16 964 58219
Grottazzolina FM 16 3398 61617
Caldarola MC 16 1823 63440
Belforte del Chienti MC 16 1886 65326
Rapagnano FM 17 2145 67471
Tolentino MC 17 20069 87540
Ortezzano FM 17 774 88314
Montefortino FM 17 1178 89492
Monte San Pietrangeli FM 18 2458 91950
Monte Giberto FM 18 801 92751
Bolognola MC 18 142 92893
Monte Vidon Combatte FM 18 433 93326
Torre San Patrizio FM 19 2048 95374
Rotella AP 19 906 96280
Montedinove AP 19 488 96768
Montalto delle Marche AP 20 2122 98890
Corridonia MC 20 15430 114320

Municipalities with at least 50000 inhabitants

An earthquake occurred to
53 Km NW of Teramo (54892 inhabitants)
59 Km E of Foligno (57155 inhabitants)
59 Km S of Ancona (100861 inhabitants)
82 Km N of L'Aquila (69753 inhabitants)
83 Km E of Perugia (166134 inhabitants)
86 Km NE of Terni (111501 inhabitants)
88 Km NW of Montesilvano (53738 inhabitants)
90 Km SE of Fano (60888 inhabitants)
95 Km NW of Pescara (121014 inhabitants)
100 Km SE of Pesaro (94582 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 2.3 1985-09-19
01:20:18
43.089 13.412 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 13389
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-09-19 01:20:18 ± 0.429
Latitude 43.0890 ± 0.0232
Longitude 13.4120 ± 0.0362
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 13389

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) 3914.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 143
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00194
Epicentral distance of station farthest from the epicenter (degree) 0.00793
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 13389
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:16:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.AS1.Z. 1985-09-19T01:20:39.00 10.0 undecidable manual SG 267 0.5439 1.19 0.2
--.AM1.Z. 1985-09-19T01:20:35.60 10.0 undecidable manual SG 16 0.4773 0.15 0.9
--.MNS.Z. 1985-09-19T01:20:33.00 10.0 undecidable manual PG 217 0.8769 -2.57 0.1
--.ALP.Z. 1985-09-19T01:20:31.40 10.0 undecidable manual SG 159 0.3219 0.88 0.5
--.AS1.Z. 1985-09-19T01:20:29.00 10.0 undecidable manual PG 267 0.5439 -0.46 1.3
--.AM1.Z. 1985-09-19T01:20:27.50 10.0 undecidable manual PG 16 0.4773 -0.6 1.2
--.CM2.Z. 1985-09-19T01:20:27.80 10.0 undecidable manual SG 297 0.2109 0.67 0.7
--.ALP.Z. 1985-09-19T01:20:25.90 10.0 undecidable manual PG 159 0.3219 0.64 1.1
--.CM2.Z. 1985-09-19T01:20:23.50 10.0 negative manual PG 297 0.2109 0.2 3
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