Earthquake with magnitude of Md 2.2 on date 20-07-1989 and time 10:50:58 (Italy) in region 2 km NE Sant'Angelo in Pontano (MC)

A magnitude Md 2.2 earthquake occured in region: 2 km NE Sant'Angelo in Pontano (MC), on

  • 20-07-1989 08:50:58 (UTC)
  • 20-07-1989 10:50:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1170, 13.4150 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
Ripe San Ginesio MC 5 852 2288
Falerone FM 5 3337 5625
Montappone FM 5 1682 7307
Loro Piceno MC 6 2401 9708
Monte Vidon Corrado FM 6 731 10439
Massa Fermana FM 6 963 11402
Penna San Giovanni MC 7 1108 12510
Colmurano MC 7 1263 13773
Servigliano FM 8 2336 16109
San Ginesio MC 8 3498 19607
Gualdo MC 8 815 20422
Urbisaglia MC 10 2628 23050
Mogliano MC 10 4696 27746
Monte San Martino MC 10 765 28511
Montegiorgio FM 10 6851 35362
Belmonte Piceno FM 11 646 36008
Monteleone di Fermo FM 12 395 36403
Camporotondo di Fiastrone MC 12 563 36966
Petriolo MC 12 1998 38964
Santa Vittoria in Matenano FM 13 1330 40294
Monsampietro Morico FM 13 659 40953
Cessapalombo MC 13 512 41465
Smerillo FM 13 365 41830
Sarnano MC 13 3264 45094
Francavilla d'Ete FM 13 964 46058
Magliano di Tenna FM 14 1452 47510
Montelparo FM 15 778 48288
Montefalcone Appennino FM 15 424 48712
Tolentino MC 15 20069 68781
Montottone FM 15 979 69760
Grottazzolina FM 15 3398 73158
Belforte del Chienti MC 15 1886 75044
Rapagnano FM 15 2145 77189
Caldarola MC 15 1823 79012
Amandola FM 16 3629 82641
Monte San Pietrangeli FM 16 2458 85099
Corridonia MC 17 15430 100529
Monte Rinaldo FM 17 379 100908
Torre San Patrizio FM 17 2048 102956
Comunanza AP 18 3166 106122
Pollenza MC 18 6618 112740
Monte Giberto FM 18 801 113541
Force AP 18 1354 114895
Ortezzano FM 18 774 115669
Monte Vidon Combatte FM 19 433 116102
Serrapetrona MC 19 966 117068
Monte San Giusto MC 20 8191 125259
Ponzano di Fermo FM 20 1674 126933

Municipalities with at least 50000 inhabitants

An earthquake occurred to
56 Km NW of Teramo (54892 inhabitants)
56 Km S of Ancona (100861 inhabitants)
60 Km E of Foligno (57155 inhabitants)
83 Km E of Perugia (166134 inhabitants)
85 Km N of L'Aquila (69753 inhabitants)
87 Km SE of Fano (60888 inhabitants)
88 Km NE of Terni (111501 inhabitants)
90 Km NW of Montesilvano (53738 inhabitants)
97 Km SE of Pesaro (94582 inhabitants)
98 Km NW of Pescara (121014 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 2.2 1989-07-20
08:50:58
43.117 13.415 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 95739
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-07-20 08:50:58 ± 0.177
Latitude 43.1170 ± 0.0104
Longitude 13.4150 ± 0.0148
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 95739

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) 1666.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 144
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00186
Epicentral distance of station farthest from the epicenter (degree) 0.00502
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:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 95739
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:29:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ASS.Z. 1989-07-20T08:51:19.00 10.0 undecidable manual SG 264 0.555 0.24 0.5
--.ARV.Z. 1989-07-20T08:51:17.50 10.0 undecidable manual SG 318 0.5106 0.24 0.5
--.AM8.Z. 1989-07-20T08:51:15.90 10.0 undecidable manual SG 17 0.444 0.59 0.3
--.ALP.Z. 1989-07-20T08:51:12.90 10.0 undecidable manual SG 161 0.3552 0.72 0.1
--.ASS.Z. 1989-07-20T08:51:10.00 10.0 undecidable manual PG 264 0.555 -0.36 1
--.ARV.Z. 1989-07-20T08:51:09.00 10.0 undecidable manual PG 318 0.5106 -0.49 0.7
--.AM8.Z. 1989-07-20T08:51:08.00 10.0 undecidable manual PG 17 0.444 -0.37 1.1
--.CM8.Z. 1989-07-20T08:51:08.10 10.0 undecidable manual SG 291 0.2109 0.48 0.5
--.ALP.Z. 1989-07-20T08:51:06.40 10.0 undecidable manual PG 161 0.3552 -0.16 1.7
--.CM8.Z. 1989-07-20T08:51:04.00 10.0 undecidable manual PG 291 0.2109 0.07 3.6
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