Earthquake with magnitude of Md 2.5 on date 13-05-1988 and time 13:06:53 (Italy) in region 7 km W Treia (MC)

A magnitude Md 2.5 earthquake occured in region: 7 km W Treia (MC), on

  • 13-05-1988 11:06:53 (UTC)
  • 13-05-1988 13:06:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3, 13.23 at 5 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
Treia MC 7 9403 9403
Cingoli MC 8 10352 19755
San Severino Marche MC 9 12726 32481
Pollenza MC 11 6618 39099
Tolentino MC 11 20069 59168
Appignano MC 12 4213 63381
Apiro MC 13 2280 65661
Serrapetrona MC 14 966 66627
Poggio San Vicino MC 14 246 66873
Gagliole MC 15 620 67493
Staffolo AN 15 2253 69746
Belforte del Chienti MC 15 1886 71632
Urbisaglia MC 17 2628 74260
Castelraimondo MC 17 4587 78847
San Paolo di Jesi AN 18 933 79780
Filottrano AN 18 9499 89279
Matelica MC 18 9981 99260
Caldarola MC 18 1823 101083
Cupramontana AN 18 4756 105839
Montecassiano MC 18 7125 112964
Macerata MC 18 42473 155437
Colmurano MC 19 1263 156700
Camporotondo di Fiastrone MC 19 563 157263
Cerreto d'Esi AN 20 3817 161080

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km SW of Ancona (100861 inhabitants)
57 Km NE of Foligno (57155 inhabitants)
62 Km S of Fano (60888 inhabitants)
71 Km E of Perugia (166134 inhabitants)
72 Km SE of Pesaro (94582 inhabitants)
81 Km NW of Teramo (54892 inhabitants)
95 Km NE of Terni (111501 inhabitants)
100 Km SE of Rimini (147750 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
Rev 1000 Md 2.5
ML-VAX 1.7
1988-05-13
11:06:53
43.3 13.23 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 69189
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-05-13 11:06:53 ± 0.28
Latitude 43.30 ± 0.01
Longitude 13.23 ± 0.02
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 69189

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) 2433.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 94
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.9
Epicentral distance of station closest to the epicenter (degree) 0.00105
Epicentral distance of station farthest from the epicenter (degree) 0.01101
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 69189
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:05:31

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 69189
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.MNS.Z. 1988-05-13T11:07:28.37 10.0 undecidable manual SG 203 0.009 -0.04 0.6
--.PGD.Z. 1988-05-13T11:07:17.95 10.0 undecidable manual PN 298 0.011 0.8 0.9
--.SFI.Z. 1988-05-13T11:07:16.62 10.0 undecidable manual PN 301 0.0104 0.38 1.2
--.MNS.Z. 1988-05-13T11:07:15.27 10.0 undecidable manual PG 203 0.009 1.65 0.4
--.CRE.Z. 1988-05-13T11:07:14.25 10.0 undecidable manual PG 289 0.0087 1.05 0.9
--.ASS.Z. 1988-05-13T11:07:11.56 10.0 undecidable manual SG 240 0.0043 -0.22 0.8
--.AM8.Z. 1988-05-13T11:07:08.15 10.0 undecidable manual SG 47 0.0032 0.54 0.7
--.ALP.Z. 1988-05-13T11:07:05.40 10.0 undecidable manual PG 154 0.0052 -0.39 1.8
--.ARV.Z. 1988-05-13T11:07:04.44 10.0 undecidable manual SG 313 0.0025 -0.04 0.8
--.SS8.Z. 1988-05-13T11:07:04.70 10.0 undecidable manual SG 179 0.0026 -0.23 0.8
--.ASS.Z. 1988-05-13T11:07:03.15 10.0 positive manual PG 240 0.0043 -0.87 2.8
--.AM8.Z. 1988-05-13T11:07:00.90 10.0 undecidable manual PG 47 0.0032 -1.52 0.7
--.CM8.Z. 1988-05-13T11:06:59.68 10.0 undecidable manual SG 209 0.0011 1.19 0.4
--.SS8.Z. 1988-05-13T11:06:58.25 10.0 undecidable manual PG 179 0.0026 -1.81 0.5
--.MC8.Z. 1988-05-13T11:06:58.30 10.0 undecidable manual PG 93 0.0012 1.62 0.6
--.ARV.Z. 1988-05-13T11:06:58.81 10.0 undecidable manual PG 313 0.0025 -0.99 1.3
--.CM8.Z. 1988-05-13T11:06:56.70 10.0 undecidable manual PG 209 0.0011 0.36 1.9
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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